The Lincoln Memorial was almost never built

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.

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.

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.

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.

The Washington Monument was completed in 1884 after nearly 40 years of delays and funding shortages

At the time of its completion, the Washington Monument stood as the tallest building in the world. Its construction stalled for decades due to political disagreements and the Civil War. The 555-foot obelisk cost nearly $1.2M to build (around $40M in today's dollars).

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

Drafted by the Senate Park Commission, the McMillan Plan called for the removal of railroads, markets, and industrial uses from the Mall; revived key elements of Pierre L'Enfant's original layout; and established the framework for the Mall's long lawns, museum placement, and monumental core.

Abraham Lincoln was almost assassinated weeks before his inauguration as he traveled from Illinois to DC through Baltimore in 1861; it took two independent claims for Lincoln to be convinced the threat was real

Mexico admired Lincoln for opposing the war and supporting Mexican sovereignty

As a congressman, Abraham Lincoln condemned the Mexican-American War as unjust. Years later, as president, he backed Mexico’s fight against French occupation. His principled stance earned enduring respect and monuments across Mexico.

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.

Lincoln's Gettysburg Address became one of the most famous speeches in American history

Delivered by Lincoln on Nov. 19, 1863, at the dedication of a national cemetery, the 272-word Gettysburg Address reframed the war as a struggle for equality. The speech would be cited as a moral touchstone for later movements such as women's suffrage and civil rights.

Early Washington lodging was scarce and uncomfortable for new congressmen

Boardinghouses near the Capitol in 1800 were so limited that many congressmen had no private rooms. Albert Gallatin complained that he had to share a bedroom with another congressman, "and look upon the same male faces day in and day out."

Lincoln was assassinated by a well-known actor, who originally planned to kidnap him

On April 14, 1865, actor John Wilkes Booth shot President Abraham Lincoln at Ford's Theatre in Washington, DC. Booth had initially conspired to kidnap Lincoln but turned to assassination after the Confederacy's defeat.

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.

Congress descended into fistfights, duels, and violence before the Civil War

In the decades before the Civil War, members of the United States Congress carried weapons, assaulted colleagues, and, in one case, a congressman killed another in a duel. The violence was driven largely by sectional conflict over slavery and foreshadowed the nation's descent into war.

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.

Thomas Jefferson dismissed the Erie Canal as 'little short of madness'

When first proposed, President Jefferson scoffed at the idea of carving a 363-mile waterway through wilderness and rock. With no precedent in American engineering, the canal seemed impossible.

Creating Martin Luther King Jr. Day took 15 years of political advocacy

After Dr. King’s assassination, activists—including his wife Coretta Scott King—spent 15 years pushing Congress to create a federal holiday in his honor, facing repeated resistance before it was finally signed into law in 1983.

The framers of the Constitution designed the amendment process to be difficult

Amending the Constitution requires substantial and widespread public support. Since 1879, more than 10,000 amendments have been proposed—many repeatedly—ranging from banning flag burning to repealing the income tax. This resource highlights some of the most notable failures.

John Marshall maintained a lifelong connection to George Washington

Marshall served under Washington in the Continental army, later delivered a memorial address following his death, and chaired the funeral arrangements. He also authored a five-volume, 3,200-page biography, "The Life of George Washington."

The namesake of gerrymandering was a signatory of the Declaration of Independence

Elbridge Gerry, a Massachusetts statesman and vice president under James Madison, signed the Declaration of Independence. He is also the only signer buried in Washington, DC, interred at Congressional Cemetery.

Key was initially opposed to the War of 1812

Like the majority of Americans, Francis Scott Key was opposed to the US declaring war on Great Britain, calling the move “abominable.” His feelings began to change after the British raided Washington, D.C. He joined the Georgetown Artillery shortly after.

Roosevelt resigned from a prominent women's organization after it barred a Black singer from performing

When the Daughters of the American Revolution refused to allow Marian Anderson to perform at their Washington hall in 1939 because she was Black, Roosevelt publicly cut ties with the group. She worked to arrange an alternative outdoor concert for Anderson at the Lincoln Memorial, which drew a crowd of 75,000.

Arlington National Cemetery was built on land seized from Robert E. Lee's family during the Civil War

Established in 1864 on a plantation once owned by Lee's wife, Arlington now spans 639 acres and is home to more than 400,000 veterans and their eligible dependents. The cemetery conducts as many as 27 funerals every weekday.

Before the current East Wing ballroom project, only two White House renovations in the past 100 years cost more than $10M.

In 2020, Loyola University Maryland removed O’Connor’s name from a dormitory

The decision was made after a student petition, citing private letters using racial epithets. Hundreds of writers and academics wrote an open letter criticizing the move, including novelist Alice Walker, who said, “We must honor Flannery for growing. Hide nothing of what she was, and use that to teach.”

Despite being favored by 87% of Americans, Congress does not have term limits.

NASA's big dream that never came to life

Conceived in the early 1960s, the Sea Dragon was an audacious ocean-launched rocket design that would have dwarfed the Saturn V in both scale and payload—but its extreme engineering challenges kept it firmly on the drawing board.

Historians debate whether 'Hamilton' is good for historical education

In this article, historians debate whether "Hamilton" deepens public engagement with US history or distorts it—examining accuracy and racial casting, and whether the musical's cultural impact outweighs its historical compromises.

Frank Lloyd Wright's houses are historically hard to sell because they're old, subject to local landmark commissions, and often unfashionable

'Grand Canyon of the Yellowstone,' a work by American painter Thomas Moran, inspired Congress to establish Yellowstone National Park.

The rivalry between Alexander Hamilton and Thomas Jefferson centered on federalism—the question of how much power the federal government should hold relative to the states.

Many legends about George Washington, including his supposed wooden teeth and the story of cutting down the cherry tree, lack evidence.

In 1915, workers recovered a submarine-like vessel from the Chicago River, prompting fears of German espionage

The idea for the Federal Reserve was conceived in secret in 1910—with bankers donning duck hunt gear for disguise while traveling to a remote country club on Georgia's Jekyll Island

Mark Twain spent decades feuding with the US Postal Service, convinced its costs and regulations were bureaucratic overreach.

The original copy of the Declaration of Independence is not a pristine document, and even features a smudged anonymous handprint in the bottom left corner.

Before writing 'Walden,' transcendentalist Henry David Thoreau nearly burned down his hometown with a campfire that grew out of control.

The Mona Lisa's celebrity status and repeated restorations have obscured what made the painting so revolutionary for its time

Famed poet TS Eliot rejected the manuscript for George Orwell's political fable 'Animal Farm,' writing that its criticism of authoritarianism was not 'the right point of view.'

American dance legend Martha Graham, sometimes called 'the Picasso of dance,' refused to perform at the 1936 Olympics in Berlin and conceived the piece 'Chronicle' in response to the experience.

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

Exploring the Larry Bird punch that almost changed March Madness

Massive 3D printers have been used to build homes by stacking layers of 'concrete toothpaste,' a fire-resistant material that effectively insulates against outside noise.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

The animatronic shark from Steven Spielberg's 'Jaws,' the first modern blockbuster, was a complex underwater apparatus called 'Bruce.'

The American Society of Civil Engineers' infrastructure report card gave the US a C in 2025, its highest grade since the project launched in 1998.

The US first hosted the World Cup in 1994, a tournament that lives in soccer infamy for its poor planning and the murder of Colombian player Andres Escobar, who'd accidentally scored on his own net.

Sunflowers have long been a symbol of nuclear disarmament because they can extract large amounts of radioactive cesium from soil.

See a 3D reconstruction of Tenochtitlan, the Aztec capital that was home to an estimated population of 200,000 to 400,000.

Apollo astronauts left items in the moon's 'toss zone,' including golf balls, family photos, and bags of human waste, to make room for lunar rocks.