The 1902 McMillan Plan reimagined the National Mall as a formal, open civic space

See Pierre L'Enfant's original plan and vision for DC and the National Mall

The National Mall once had canals and rail lines

In the 1800s, the National Mall looked nothing like it does today. Canals, rail lines, markets, and industrial uses crisscrossed the Mall before later redesigns cleared it into a unified civic landscape.

Take an architectural walking tour of the National Mall.

Washington, DC, was designed by French-born architect Pierre L'Enfant

Pierre Charles L'Enfant was an engineer who fought in the American Revolution. George Washington chose him to design the capital for his military service, artistic training, and vision of a monumental national city.

The National Mall's oldest building is the Lockkeeper's House

Built in 1837, the Lockkeeper's House is the oldest structure on the National Mall. It once served the lockkeeper of the Washington City Canal and of an extension of the Chesapeake & Ohio Canal, part of early plans to bring commercial waterways into the capital.

The Lincoln Memorial was almost never built

The Memorial faced years of opposition from Speaker of the House Joseph Gurney Cannon, who blocked it for nearly a decade, arguing that the swampy land west of the Mall was an unfit and undignified site to honor Lincoln.

The National Mall hosts one of the country's largest July Fourth fireworks shows

Each Independence Day, the National Mall hosts a massive fireworks display coordinated by the National Park Service, drawing hundreds of thousands of spectators to the nation's capital.

The unbuilt monuments of Washington, DC

The capital city of the United States famously was built in a swampy area, with dozens of memorials, monuments, and more spanning its vast and complex design. This video explores five monuments that were either built or were rejected as alternatives in the sprawling District of Columbia on the banks of the Potomac River.

Madison's Virginia Plan proposed a strong national government with population-based representation

Crafted by Madison and introduced at the opening of the Constitutional Convention of 1787, the Virginia Plan outlined a three-branch federal government and a bicameral legislature. This plan shaped the structure and direction of the debates that led to the creation of the US Constitution.

Edith Roosevelt's White House redesign created the modern West Wing

In 1902, first lady Edith Roosevelt oversaw a significant renovation that separated the family residence from official offices. Architect Charles McKim added the West Wing to house the president's staff—establishing the modern layout still used today.

There are over 20,000 trees on the National Mall

Nearly 4,000 of the Mall's trees are cherry trees, all maintained by a small National Park Service arborist team that provides year-round, science-based care to address soil compaction, root damage, and heavy visitor traffic.

Sheep once grazed on the National Mall and White House grounds

In the late 1910s, sheep grazed near the Lincoln Memorial and on the White House lawn. Under Woodrow Wilson, their wool was auctioned for charity, briefly making the grazing animals the subject of a federal cost-saving experiment.

Hear the story of the early American environmentalists who shaped the public lands we enjoy today.

Take a tour of the Museum of Natural History

Opened in 1910 on the Mall, the National Museum of Natural History is among the Smithsonian's oldest museums. Its scientists steward more than 148 million objects and specimens—making it the largest natural history collection on Earth.

The National Park Service responded to the postwar influx of visitors with a massive project

The architecture of the Met

Curious how the Met came to occupy its incredible campus? This video, which was produced in association with the exhibition “Making The Met, 1970-2020,” tracks the history of the museum through the evolution of its architecture. From its temporary location in a private residence to its intended home in Central Park, the building now reflects the many different eras of design, including Victorian Gothic and Modernism, that have influenced its facade through the years.

The Compromise of 1790 broke a deadlock over debt and the national capital

In 1790, Alexander Hamilton, James Madison, and Thomas Jefferson reached an agreement that allowed Congress to assume the states' war debts and to approve a permanent national capital on the Potomac River.

The White House design was chosen through a national competition

In 1792, President George Washington launched a public contest to design the new executive mansion. Irish-born architect James Hoban's neoclassical plan won the contest. His design was inspired by Dublin's Leinster House, which houses Ireland's parliament.

The hidden hallway behind Mount Rushmore and why it’s unfinished

Mount Rushmore was designed to be more than a massive monument to US presidents, and its ambitious plans were part of the reason why. This fascinating video explores its backstory, creation, and the hidden tunnel behind President Lincoln's head.

Americans touring the Louvre were inspired to create their own grand museums

The one-time royal residence was first transformed into a public museum in 1793 amid the French Revolution. Americans visiting in the early 1800s were both turned off by the aristocratic grandeur and compelled by the open access to the public. James Fenimore Cooper, the author of "The Last of the Mohicans," apparently came and measured the length of galleries.

It took nearly a century to build the National Museum of African American History and Culture

Although Congress first authorized a national memorial to Black achievement in 1929, the National Museum of African American History and Culture did not open until 2016—after decades of stalled efforts, renewed legislation in 2003, and a prolonged fight over funding and location.

President Trump tore down the East Wing in October 2025 to build a new ballroom

In October 2025, Donald Trump commenced demolition of the historic East Wing of the White House to clear space for a privately funded, 90,000-square-foot ballroom. The project drew criticism from preservationists and public officials.

Washington DC's streetcar network built the modern American suburb

Washington's first electric streetcar line launched in 1888, and real estate developers quickly built lines to open new neighborhoods. A 35-minute ride from Chevy Chase, Maryland, to downtown Washington transformed farmland into a suburb.

Congress meets and legislates in the US Capitol building

The United States Capitol reflects neoclassical ideals drawn from ancient Greece and Rome. First opened to Congress in 1800 and repeatedly expanded over time, it remains the symbolic and functional home of both The House and The Senate.

The AIDS Memorial Quilt turned the National Mall into a public memorial in 1987

First displayed on the National Mall, the AIDS Memorial Quilt comprised thousands of handmade panels honoring individuals who had died of AIDS. Its placement on the Mall was intended to force public recognition of the human cost of AIDS amid widespread government inaction.

Washington DC's first public library, built in 1903, now operates as an Apple store

The Carnegie Library served as DC's central library until 1972, when overcrowding forced a move to the Martin Luther King Jr. Memorial Library. After sitting unused for five years, the building changed hands several times before Apple agreed to restore it and open a store there in 2016.

Thomas Jefferson is rumored to have anonymously submitted a design for the White House

Of the design submissions for the White House, one is rumored to have been submitted by Thomas Jefferson, an amateur architect. Though his design did not win, he later influenced the grounds as president, adding formal gardens, wooded areas, and a carriage drive.

An exploration of the life and death of US malls

American malls sought to recreate the cohesion of a downtown shopping center but with the indoor, quiet convenience of a rural or suburban setting. First developed in the 1950s, malls quickly took off and became the spine of American retail shopping. In the last two decades, online retail has forced many to close, leaving behind peculiar, vast abandoned spaces. Pick through the stark nostalgia with this fascinating photo essay.

The concept of the American front lawn was popularized by a 19th-century book that argued its maintenance was a neighborly obligation.

The early years of the Met

The Met didn’t start out in the grand, sprawling grounds that it currently occupies. This episode of Hometown History, a podcast about lesser-known historical places and events, covers the early years of the venerable institution. Learn about how the vision and planning of a group of 19th century artists and philanthropists took the Met from a small collection in a humble brick building to the cultural powerhouse that it is today.

Lincoln's original reconstruction vision prioritized reconciliation

Proposed in 1863, Lincoln's Ten Percent Plan offered lenient readmission for Southern states once 10% of voters pledged loyalty and ended slavery. It was adopted in a few Union-occupied areas but was only partially implemented before his assassination in 1865.

Hamilton proposed one of the strongest visions of national government

At the Constitutional Convention, Alexander Hamilton advanced a plan modeled partly on Britain's system, calling for a powerful national executive and for senators to serve for life (with good behavior)—proposals that failed to gain widespread support.

Go inside the Washington Monument

This video tour of the Washington Monument explores its interior, construction delays, political battles, memorial stones, earthquake damage, and later modernization—showing how symbolism, engineering, and 19th-century politics shaped the nation's tallest monument.

The front lawn became an American ideal in the 20th century.

The controversy behind the Vietnam Veterans Memorial

It's now a standard stop for tourists visiting Washington, DC, but before it was built the Vietnam Veterans Memorial triggered an internecine battle between the war's veterans, some of whom believed the planned memorial was offensive. This short documentary recounts the controversy and the ultimate triumph of the memorial, which helped change the country's impression of the war and its soldiers.

Mary Cassatt created a massive mural titled "Modern Woman" for the 1893 World's Fair, but it mysteriously disappeared after the fair ended and hasn't been found since.

White House renovations have always been controversial

From Theodore Roosevelt's 1902 overhaul to Harry Truman's complete gutting in 1948 and Jacqueline Kennedy's historic restoration in the 1960s, nearly every major White House renovation has faced criticism over cost, design choices, or historical preservation.

More than 5,000 marchers joined the 1913 Woman Suffrage Parade on the National Mall

On March 3, 1913—the day before Woodrow Wilson's inauguration—suffragists marched through Washington, DC. The parade drew large crowds, exposed violent opposition to women's suffrage, and helped galvanize support for the 19th Amendment.

Take a virtual tour of the White House's 132 rooms as they looked before the 2025 East Wing ballroom renovation.

Celebrations for America's 150th birthday in 1926 were a poorly organized mess that nearly bankrupted the host city of Philadelphia.

Jacqueline Kennedy transformed the White House into a museum of American history

Between 1961 and 1963, first lady Jacqueline Kennedy oversaw a dramatic restoration of the White House, furnishing rooms with authentic antiques, founding the White House Historical Association, and securing congressional protection for the White House's historic interiors.

The Oval Office was completed in 1909

Completed during William Howard Taft's presidency, the Oval Office was designed as part of an expansion of the West Wing. President Franklin D. Roosevelt redesigned the room and moved it to the southeast corner of the West Wing in 1934.

The Leopold Report was an early blueprint for ecosystem management

The 1963 report, officially known as Wildlife Management in the National Parks, recommended wildlife management and ecological preservation. In 2012, a follow-up report built upon the original paper to guide future park service policies based on scientific findings.

Eliza Scidmore advocated for planting cherry trees in Washington, DC, in the early 1900s

The first female writer for National Geographic, Scidmore championed planting Japanese cherry trees around the Tidal Basin in Washington, DC. Her idea succeeded in 1912, after years of lobbying, creating one of the National Mall's most enduring traditions and tourist draws.

The Smithsonian is the world's largest museum complex

With 21 museums and the National Zoo, the Smithsonian Institution is the world's largest museum complex. Eleven of those museums sit directly on the National Mall, and all offer free admission to the public.

Urban planning in ancient Rome

Ancient Rome represents one of the earliest examples of coordinated urban planning from a central government for which researchers have access to contemporary records. This review from MIT showcases ancient Roman cities built on various types of grids, from rectangular outlines to those shaped around two intersecting axes, with several examples and maps provided for each.

Tour the UN building in NYC with architect Michael Wyetzner

The modernist building was meant to stand out among the New York skyline. It’s three primary buildings are distinct and were supported by millions in donations from philanthropists families like the Rockefellers.

Most White House renovations have cost no more than $10M.

The storied residence of the US president has undergone many overhauls in its day, from rooftop fixes to bowling alley and pool installations. The majority of the renovation projects came in under $10M. President Trump's expansion of the West Wing, primarily funded by private donations, would cost more than $200M.

The 'Gruen transfer' refers to the price psychology behind large shopping malls, where shoppers make spontaneous purchases due to the overwhelming exposure to a variety of stores.

McCulloch v. Maryland upheld implied powers and blocked states from taxing the federal government

In 1819, McCulloch v. Maryland confirmed that Congress may use implied powers under the necessary and proper clause and ruled that states cannot tax federal institutions, reaffirming the supremacy of the federal government within its constitutionally delegated powers.