Japan is home to intricately designed region-specific manhole covers

Japan is home to the world's only geothermal steam dye workshop

The Hachimantai Geothermal Dyeing Workshop sees artisans and visitors use volcanic steam to fix dyes and add gradations to patterns, creating tie-dyed handkerchiefs and mini-scarves.

Manholes connect underground sewer and water drain pipes

Wherever a portion of sewer is connected to another, a manhole is built. These serve both as access points for maintenance and as connectors for the system. This video shows how crucial manholes are for proper sewer functioning.

Tokyo's transparent toilets use smart, automatic glass to make cleanliness visible

Dubbed the Tokyo Toilet project, this initiative installs restrooms whose walls are transparent when empty, so users can see whether they are clean and safe. When they lock, they turn opaque for privacy. Beyond addressing two key anxieties (hygiene and security), the project lends a distinct architectural prestige to typically banal (and reviled) toilets.

QR codes were developed in Japan in 1994 to fix bar code limitations

These codes store more data than traditional barcodes—up to 1,850 uppercase characters—and can be quickly scanned from any angle thanks to visual indicators like green squares and zebra-striped lines communicating orientation.

Why Japan builds airports on water

Some of Japan's roughly 100 airports are built on water—that is, engineers have created new land in bodies of water specifically to construct airports. This six-minute video explains why the country is doing so despite the higher cost of such airports.

Infrastructure built to limit tsunami damage includes channels to divert water, floodgates, and seawalls, such as the approximately 400-kilometer (249-mile) wall built in Japan after the 2011 Tōhoku earthquake and tsunami.

Woven City at the base of Mount Fuji in Japan

The Woven City at the base of Mount Fuji in Japan is a ‘living laboratory’ for new technologies. It is being developed by Toyota subsidiary, Woven Planet, and will be the world’s first programmable city.

Essential pipes, sewers, and cables lie buried beneath New York City

The Department of Design and Construction offers a tour of its work sites, explaining the complex systems that exist underground. Gas, electrical, telecom pipes, and many others, sprawl out underneath the entire city, with dozens of maps that help workers know where they're placed. This layout is unusual compared to the rest of the country, where wires are often present and visible above ground.

Japanese Prime Minister Shinzo Abe dressed as Mario at the Olympics

In a 2016 ceremony at that year’s Summer Games in Rio, Abe dressed as Super Mario to celebrate his country hosting the 2020 Olympics. It was a logical move: The character is one of the most recognizable characters in the world and someone who’s now associated with Japanese culture.

See a collection of mind-bending architecture around the world, including a teapot gas station, a duck home, and a picnic basket building.

Japan has a government office dedicated to tackling loneliness and isolation

The new government office was established in 2021, following the UK's example. It's designed to combat loneliness and the feelings that can proceed suicides. The office's homepage features a chatbot designed to help individuals answer questions and specifically connect with one of 150 support programs.

Japan train station names cat stationmaster

How parking infrastructure reveals a region's values

As cars became more popular, the need for city parking increased. In Europe, well-established cities with limited space generally opted for more expensive underground parking beneath public spaces to preserve aesthetics. Available land and decentralized planning in the US saw more parking lots and garages built. These decisions reveal broader policy realities for these regions.

Japanese artwork often incorporates bold colors, clean lines, and natural subjects

While Japanese art is diverse and continues to adopt new styles and techniques, the Japanese approach to painting nature inspired Georgia O’Keeffe, who was known for depicting the environment in a detailed yet realistic manner. Below is "The Great Wave off Kanagawa," from 1931, by Hokusai.

Yakuza gangsters' tattoos often portrayed moments from their lives

Although tattoos have been worn in Japan for centuries, no single group is more famous for their elaborate, full-body tattoos—featuring traditional Japanese art—than Yakuza gangsters. The criminal organization does not use tattoos to mark their association, though. Instead, the scenes are intensely personal.

View a gallery of whimsical transmission tower designs from around the world

Despite their importance to the functioning of the electric grid, these structures are often considered aesthetically unpleasant. To remedy this, some have been transformed into art installations featuring stained glass and colorful lighting, or built with whimsical designs, such as clown faces or giant bodies.

Why workers in Japan hire resignation experts

Many workers in Japan hire resignation experts to help them quit their jobs. That's partly because quitting is taboo in Japan. It's seen as "the ultimate form of disrespect" in that country, where job hopping is uncommon. Bosses sometimes attempt to force workers to stay when they resign, creating quite the market for resignation assistance firms. Read more in this article.

Modern landfills use layered liners, leachate systems, and gas monitors to safely contain waste

Today, landfill engineering is far more complex than a hole in the ground, which was largely the system cities used less than a century ago. This video explains how it actually works.

Japanese horror is often more psychological than its Western counterpart

One of the country’s most famous directors is Masaki Kobayashi, who won a Special Jury Prize at the 1965 Cannes Film Festival. Unlike his Western peers, Kobayashi’s films avoid jump scares or gratuitous gore, opting instead for slow-burning psychological explorations that are just as terrifying.

The fascinating world of Disney's themed trash cans

One man's trash can is a literal treasure trove for Steve Tanner, the impassioned curator of this gallery of Disney's hundreds of distinct trash cans at its many parks and resorts. For 15 years, Tanner has researched and photographed the varying styles and themes of the trash cans and posted images and descriptions of them on his site, organized by location. Dive into the world of trash here.

Why Amsterdam looks so unique

The Netherlands' capital consists of concentric canals lined with towering, unusually thin row homes, an altogether unique profile in Europe and the world. When it was growing, the city was a key trade hub, and merchants wanted direct access to waterways. Canals were built like roads, and houses were required to be very thin to allow for more homes to line the canals.

Cities and parks often work to prevent graffiti

Although some call it art, many see it as an eyesore and try to prevent it through prohibitive designs, lighting, and vandal-proofed coatings that make spray paint easier to remove. This guide from the Project for Public Spaces outlines some of those strategies and more.

The tiny Japanese village responsible for the world's best turntable needles

Hamasaka is an unassuming village four hours from Kyoto, but it's an important location for audiophiles thanks to its JICO factory, which manufactures turntable needles that replicate vintage and discontinued models.

The Japanese folklore that inspired Pokémon

Characters from the popular video game series appear to reference the yōkai from Japanese folklore, which first became popular during the country's Edo period, when art and literature became mass-produced.

Women in WWII used tattoos to avoid capture

During World War II, Japanese soldiers kidnapped women from Southeast Asian countries and forced them into sexual slavery. But they hesitated to capture married women, a fact that women from the island of Timor exploited, painstakingly poking tattoos onto their bodies that marked them as married women.

Eating KFC is a Christmas tradition in Japan

Since a 1974 marketing campaign, eating KFC on Christmas has become a nationwide custom in Japan. Families place orders weeks in advance, and the holiday accounts for nearly a third of KFC Japan's total yearly sales.

The fabulous prison escapes of Japan's Yoshie Shiratori

Between 1936 and 1947, Japan's Harry Houdini escaped from prison four times, each more daring than the next. Even as the walls grew taller and the windows smaller, Siratori found ways to free himself from captivity.

Japan's wrestling style is called puroresu

Puroresu has a long history in Japan, much of it traced back to Mitsuhiro Momota, better known as Rikidozan, who was the form’s first superstar and a hero to the country in the wake of World War II.

Singapore, one of the world's smartest cities

A fascinating look into what makes Singapore one of the smartest cities in the world, including human-centric innovations benefitting human health such as the AI-powered "Smart Elderly Alert System."

Explore plans for smart cities expected to be built by 2050

Locations such as Net City in China, Woven City in Japan, and NEOM in Saudi Arabia are expected to incorporate green energy, AI, and advanced transportation system technologies to enhance air quality, reduce congestion, and minimize pollution by significantly reducing personal car use.

Why are subway walls tiled?

In the early days of subway tunnels, architects needed to deal with dirt and moisture and make the cavernous stations less dank and dark. Ceramic tiles were easy to clean, and their glossy, bright finish helped illuminate the cave-like areas.

Why some US cities pay thousands of dollars for a single public trash can

The rationale supposes high-end, heavy-duty trash cans reduce litter and maintenance costs, justifying per-unit costs of close to $3,000 in some municipalities. But results are mixed, and some experiments using cheap 55-gallon drums were similarly effective.

Chinese citizens express both support and frustration toward smart city surveillance

Although surveillance is viewed as necessary for enhancing morality and enforcing regulations, many citizens adopt mental tactics to distance themselves from it. Surveillance is linked to China's historical "century of humiliation," following the Opium Wars and Japanese invasion.

Plastic debris across the ocean aids the spread of invasive species

The durable, long-lasting material can serve as a platform for living organisms to latch onto and ride over vast distances. After the 2011 earthquake and tsunami in Japan, a large dock carrying 100 tons of living organisms native to Japan washed up on Oregon's coastline, confirming the ecological threat.

Japan's mysterious disappearance industry

Tens of thousands of Japanese people reportedly choose to leave their lives behind and vanish, according to a 2016 book by Lena Mauger. This long read dives into some of the book's claims via interviews with some of the individuals opting to vanish,...

Japanese scientists have developed an eco-friendly plastic that naturally dissolves in hours, leaving behind molecules containing phosphorus and nitrogen, which fertilize soil.

How Japanese Anime became a global phenomenon

Anime's popularity was once confined to Japan, but the art form has attracted a global audience in the 2020s due in large part to its availability on streaming and increased watch times during the COVID-19 pandemic. This Hollywood Reporter article explains how other factors—including several influential celebrities who consider themselves anime aficionados—have made the genre an international sensation.

The sewage of New York City

Residents of the five boroughs of New York produce 1.3 billion gallons of wastewater everyday. Seventy miles of sewer pipes, first built in the mid-1800s, feed the sewage to 14 wastewater treatment and recovery plants where the waste is treated back to viable, drinkable water. See what shouldn't go down the toilet here.

The Australian $5 bill has an image of a bird that glows when exposed to UV light

That’s just one of the many anti-counterfeiting security measures that the Australian government implements on its currency. Popular banknotes from around the world all include their own unique security features—this infographic outlines a few unique ones.

Reimagine damaged cultural sites from around the world

NeoMam art studios created animated GIFs restoring six endangered World Heritage sites to their original glory. These include Hatra, a fortified city in Iraq, and Nan Madol, an island site in the northwest Pacific. These landmarks are designated as at risk due to threats like earthquakes and conflict in the regions. Enjoy some of the beautifully restored landmarks with this brief article.

Norway is responsible for salmon sushi

Japanese sushi did not include salmon until the mid-1990s because Pacific salmon was known to contain parasites. Norway, meanwhile, had an abundance of Atlantic salmon, which was safe to eat raw. The country smelled an opportunity and launched Project Japan, which successfully convinced the country that Atlantic salmon was safe to include in its cuisine.

Smart cities like Songdo, South Korea, have created isolating environments

Built as a futuristic, eco-friendly city filled with smart features like pneumatic trash systems and app-controlled homes, the town provides limited opportunities for face-to-face interactions amid sterile backdrops. A focus on high-rise housing amplifies the lonely, disconnected atmosphere.

In the 1980s, a shipping container carrying thousands of plastic Garfield telephones fell into the sea off France's Breton coast, inspiring an enduring tradition of locals hunting for parts.

An anthropologist spent years riding garbage trucks to understand what our trash says about us

Robin Nagle rode with New York City sanitation workers to trace the hidden life of what we throw out. Her research explores what the things we discard reveal about who we are. 1440 explores the hidden life of trash.

Paris and Boston were redesigned partly to combat cholera's spread

Georges-Eugène "Baron" Haussmann, who oversaw Paris's redesign in the 1800s, replaced many of the city's narrow streets with wide boulevards. This was done at least in part to bring more air and light into the city to help control cholera. Architect Arthur Gilman redeveloped Boston's Back Bay to similarly combat cholera, among other reasons.

Globalization is increasing the demand for cheese

The increased popularity of Western cuisine has affected the cheese market in historically cheese-averse regions like East Asia. Japan has gotten particularly excited about exploring what cheese has to offer, with festivals and creative fusion dishes featuring the versatile ingredient.

Tokyo is the world's largest city by population

Home to over 41 million people, the megacity used to be a humble fishing village called Edo. Since Japan opened to foreign trade in the mid-1800s, Tokyo has made significant economic advances and achieved numerous milestones in public transportation, urban planning and culture.

Smart cities have been more successful when upgrading existing infrastructure

Building urban landscapes with smart technologies from scratch has sometimes produced futuristic-looking yet sterile environments that struggle to attract residents and justify high costs. Enhancing existing areas while retaining their historical and cultural touchstones has proven more appealing in many cities.

A detailed analysis of romance novel covers through history

A lot has changed in the romance genre over time, a fact that's clearest in the way that the books are marketed to consumers. This interactive data visualization surveyed decades of romance book jackets, finding that raunchy, realistic paintings of scantily clad models have largely been replaced by vibrantly colored illustrations, often with the characters drawn as cartoons.

Sudoku was originally called 'Number Place'

While there are earlier variations on the game, the modern version appeared in 1979, though it was then called "Number Place." The game was slightly altered and renamed in Japan.