View a map of America's regional pizza styles

The story of pizza in the United States

Pizza is a big deal in the US, and it has many proud regional iterations. From Chicago deep dish to New York thin crust, this video takes a slice out of US history to focus on this beloved entree. Begin with the documented first incidence of pizza in the US—believed to be by Gennaro Lombardi—and end with how old Pizza Huts are being converted around the country.

A list of the world's best pizzerias

Italy may be pizza's ancestral home, but it's not the only place where you can get a top-notch slice. This guide, compiled by a team of anonymous judges, ranks the 50 best pizzerias in the world, Italy, the US, and more, offering a bucket list for pizza-loving completists.

New Haven 'apizza' nods to Naples and New England

The thin pizza, called "apizza," is crispier than the typical slice from New York or a national chain, and much more like the thin-crust pizzas associated with pizza's birthplace. It's also got some inspired toppings, with one popular pie that speaks to New England's love of seafood: the white clam pie.

One food history professor says pizza is more American than Italian

Alberto Grandi, a professor at the University of Parma, argues that Italians who left the country developed the food now considered "traditional Italian cuisine," thanks to abundant ingredients and opportunities that were not available in the impoverished country they left behind.

Pizza became more popular in Italy after it took off in the US

Pizza was invented in Naples, though it wasn't particularly popular outside the region. As it grew more popular elsewhere—and as more American and European tourists visiting Italy began asking for it—restaurants across Italy adopted the cuisine. It's something anthropologist Agehananda Bharati calls "the pizza effect."

'Neapolitan pizza' is a highly specific (and tightly regulated) distinction

The Associazione Verace Pizza Napoletana claims to protect the tradition of Naples' pizzamaking and has codified precise requirements for what constitutes a "Neapolitan pizza," specifying ingredients, preparation, fermentation, condiments, and more.

Pizza is believed to have been invented in Naples

Flatbreads were eaten by ancient Egyptians, Romans, and Greeks, but historians trace pizza—flatbread with toppings, including present-day staples like tomatoes, cheese, garlic, oregano, and oil—back to 18th-century Naples, where the food was loved by its working poor, who appreciated a cheap, tasty meal. Naples formally became a part of Italy in 1861.

In 2023, the world consumed over 5 billion pizzas

Americans ate 3 billion of those, leading to sales that reached $43.3B, according to industry analysts at Gitnux. They estimated that Americans eat an average of 46 slices per person that year.

The preferred barbecue sauce depends on your location

America's regional barbecue styles include multiple highly specific sauces. From the tart, acidic vinegar-based sauces of North Carolina, to the thick, sweet-spicy Kansas City variation, American barbecue sauces are as varied as the country’s geography.

An interactive map of race and ethnicity across the US

This map by CNN shows race and ethnicity across the United States. America is more diverse and has more people than ever before. According to the 2020 census, much of its growth is occurring in and around metropolitan areas. By plotting the US...

A fresco from ancient Pompeii featured an 'ancestor of modern pizza'

A team of archaeologists discovered a fresco from 79 CE featuring what appears to be a proto-pizza: a pita topped with fruit, spices, and other toppings. One archaeologist in the PBS documentary below calls it an "ancestor of modern pizza in the sense that it's a very simple, poor kind of food."

Pizza's popularity has waned in the 2020s

The food remains popular, but it has lagged behind the growth of other fast food spots like coffee shops and Mexican restaurants. It ranked sixth in US food sales from restaurant chains in 2024; it was in the second slot throughout the 1990s. (Some readers may experience a paywall.)

Pizza didn't take off in the US until after World War II, likely because of technological advancements and soldiers' exposure to it abroad.

The bizarre 1920 proposal to form a pizza-shaped central European state

In light of the challenges of the Treaty of Versailles, which concluded the Great War, a mostly unknown author, and son of the map's printer, PA Maas suggested central Europe be integrated into a single state. With a central capital in Vienna, 24 Kantons, or regions, would radiate outward in pie-slice shapes.

Detroit-style pizza's recipe nods to the Motor City

Legend has it that the rectangular pies were originally baked in blue steel pans intended to hold nuts and bolts in auto factories. The sauce poured across the top of the pies, meanwhile, is done so in straight lines called "tire tracks."

Chicago deep-dish pizza arrived in 1943

Pizzeria Uno was the first establishment to sell the concoction, which turned more traditional pizza upside down, with cheese as the base and sauce as the topping. Soon, Uno employees went out on their own, sparking a citywide deep-dish phenomenon.

A comprehensive taxonomy of American tacos

Tacos may be a Mexican food, but they're wildly popular in America and in a number of different styles. This lengthy guide from Serious Eats was compiled after visiting more than 1,000 taco shops. It breaks down the differences between the many variations on the form (including breakfast, barbacoa, and Deli Mex) you'll encounter in different regions of the country. We don't recommend reading on an empty stomach!

The Hawaiian pizza was popularized by a Canadian chef

Hawaii's tiki culture was popular in North America through the mid-20th century, with canned pineapple a household staple. Sam Panopoulos, a Greek immigrant who operated a diner in Ontario, experimented with outlandish pizza recipes until he stumbled upon the idea for topping a pie with canned pineapple and ham.

An AI-built pixel map reimagines New York City as a video game

Isometric NYC is a zoomable pixel-art map that renders the city in game-style perspective (think SimCity), helpfully clarifying the dense geography and architecture. The makers built the project tile-by-tile using satellite data and generative AI. Zoom into building-level views or out to see all five boroughs.

Lombardi's was the first documented pizza restaurant in the US

The New York establishment opened in the early 1900s and was a cornerstone of Manhattan's SoHo. At one point, it was open 23 hours a day, allowing laborers of the predominantly Italian-American community to stop by for pies before or after work.

Check out an interactive map of 250 American places worth visiting before you die.

See how food access varies across America with these interactive maps that show grocery store proximity.

An interactive periodic table maps every possible combination of cheese variables

Plotting milk type, texture, rind, mold, aging, and processing as intersecting axes, the tool shows which combinations already exist as named cheeses, which survive only as rare regional styles, and which remain entirely unexplored.

One baker is likely responsible for several of New York's earliest pizzerias

Filippo Milone established at least six pizzerias in New York, including one that would later be called Lombardi's, widely considered to be the city's (and the country's) first pizza establishment. Milone died in 1924, leaving no children to tell his story. Researcher Peter Regas unearthed a 1903 advertisement, pictured below, from an Italian-language New York newspaper.

There are more than a dozen burrito types in the US

Different regions have different aspects, including Mission-style in San Francisco (and nationwide via Chipotle), the chile Colorado burrito, New Mexico’s breakfast burrito, and fusions like the Korean burrito.

See MS prevalence by region in the United States

This map underscores that people in the northeastern United States have more cases of the disease as compared to the south, west, and midwest. On an individual level, these numbers may still differ based on genetic makeup and other factors irrespective of where people live.

The world's largest pizza was 13,990 square feet

Pizza Hut teamed with YouTuber Eric Decker to create the massive, Guinness World Record-breaking pie. The 13,653-pound pizza was constructed at the Los Angeles Convention Center. It required 4,948 pounds of sauce, 8,800 pounds of cheese, and about 630,496 pepperoni slices.

Mapping the origins of the world's crops

Food has evolved alongside humanity, and through globalized trade, much of the world can enjoy foods once isolated to one region. Examine where your favorite foods originated from and see how diet differs across cultures with these interactive...

Mapping the world records held by each US state

What world record does your state hold? Check out this map of the United States to see what weird accomplishment took place near you.

Search this digital archive of 19th-century "panoramic" maps of US and Canadian cities

The panoramic map was a popular cartographic form used to depict U.S. and Canadian cities and towns during the late nineteenth and early twentieth centuries. You can peruse a gallery of almost 2,000 of them in this digital archive from the Library...

Explore a visualization of the data behind Ben & Jerry's legendary ice cream flavors.

Mapping the route options between the Pacific and Atlantic

This map shows some of the alternative trade route options that are available to shipping companies, from overland routes that rely on railways to transport goods coast-to-coast, to Arctic Ocean passages.

Legend has it that the Margherita pizza was named after an encounter with Queen Margherita

The Queen of Italy, Margherita of Savoy, visited Naples in 1889. As the story goes, chef Raffaele Esposito of Pizzeria Brandi made her a pizza with basil, mozzarella, and tomato, to represent the colors of the Italian flag, and eventually named the pie in her honor. Historians, however, note that the facts don't line up: The proof of her visit to the pizzeria is suspected to be a forgery created when the business was in dire straits in the 1930s.

Virtually tour 10 of America's oldest bars

If you’re the type of person who hunts for authenticity in everything you do, then you probably spend a fair amount of time looking for the first and original. Why settle for any less in your bar choices? We dug through records, spoke with local historians and fact-checked promotional material to bring you the ultimate original bar list: The oldest bar in every state.

The illegal happy hour map

Despite its origins as a US phenomenon, happy hours aren't welcome everywhere in the country. This resource includes a map that visualizes every American state's happy hour legislation, from the states with complete bans (like Massachusetts) to states that don't have any happy hour legislation at all.

The best sushi restaurants in the US

Not every sushi spot is the same: They have different fish distributors, different menus, and different vibes. This list ranks US restaurants that have excelled across the board, highlighting well-regarded omakase counters (like New York’s Sushi Nakazawa) and old-school bars (like Los Angeles’ Sushi Gen).

American barbecue varies by region, with particularly strong traditions in the 'barbecue belt' of Texas, Memphis, Kansas City, and the Carolinas.

The best restaurant tasting experiences in every state

Looking for the best tasting experiences that are a must-try in your home state or anywhere you may be traveling? Here are your options.

View a fall foliage prediction map to estimate the progressive change in the color of leaves throughout the US from September to mid-November.

Explore landforms that exist across America's national parks

Landforms are not just scenic vistas; they are geological storytellers that shape ecosystems, climates, and our understanding of Earth's history. In this comprehensive look at landforms from the National Park Service, you will learn not only about different types of American landforms, but you will understand how these geological features are shaped by various forces, how they reveal an area's geological history, and how they influence climate and ecology.

Visualizing California's wine production

While Europe has France, Italy, and Spain, the US has California. The bulk of US wine production takes place in the Golden State, accounting for roughly two-thirds of the United States’ nearly 800 million gallons produced each year. This chart compares California and United States wine production from 1995 through 2022. Production in both has been trending down for several years, partially due to extreme weather events.

View an interactive map of US power plants, which generate electricity from coal, gas, water, biomass, nuclear fuel, oil, sunlight, and wind.

Disco fries are New Jersey's answer to poutine

The dish—french fries topped with mozzarella cheese and brown gravy—is a staple for New Jersey diners, where the dish was served to inebriated patrons who'd just left the disco club. There's no clear inventor responsible for the delicacy, though most people assume it's a variation of poutine, the similar dish that's popular in Canada.

Some people in Italy enjoy a cheese with live maggots in it

From squeaky Wisconsin cheese curds to the squirmy Sardinian casu marzu, cheese around the globe comes in myriad forms. Exploring the work of seven cheesemakers in seven countries, this video shows each cheese has traditions and flavors unique to its part of the world.

Explore Pompeii with an interactive map packed with 60+ key sites

This tool provides detailed information on major landmarks—from the Villa of Mysteries to the House of the Tragic Poet—and suggests themed walking routes based on visit length. A companion app adds virtual reconstructions and a full audioguide.

View a map of US data center infrastructure in 2025

Thousands of data centers across the country have already been built, with more under construction or planned. Facilities are connected via transmission and fiber optic lines, with the latter spanning an estimated length of 160 million miles.

See a map of the Maya civilization and its major historical sites

This interactive map showcases the full geographic extent of the Maya civilization, highlighting major archaeological sites across Mexico and Central America. Explore where Maya cities once stood—and where their ruins can still be visited today.

Snowfall records from every county in the US

Discover the one-day snowfall records of every county in the US in this comprehensive map. Data from the National Oceanic and Atmospheric Administration captures inches of snowfall and the year it fell the most in each county. See the contrasts between the inches of snowfall in warm southern American states and the cooler East Coast.

Italian immigrants brought pizza to Argentina in the late 19th century

Two million Italians emigrated to Argentina between 1880 and 1920, many of them the poor who regularly ate pizza. In Argentina, they were pleased to find that mozzarella was plentiful, allowing them to make cheesier pies. By 1882, Italians owned 126 of the 198 bakeries in Buenos Aires, as well as the majority of shops selling butter, cheese, and pasta.

Visit these offbeat attractions in each US state

Skip the lines, avoid the crowds, go against the grain: That's the spirit of this list of the 50 coolest offbeat attractions in every US state. From Alaska's museum of hammers to Wyoming's thermal pools, you can find somewhere a little different to...