One of the world’s largest collections of paper memorabilia chronicles 4,000 years of papermaking.

A colorful square marks the heart of the city's LGBTQ community.

The largest puppetry museum in the United States houses the world's most complete collection of Jim Henson artifacts.

After the parade, students throw their beads on the tree hoping for good luck on exams.

Shop for books in the New Orleans house where William Faulkner once lived.

Railroad officials in the early 1900s sought to spare travelers the sight of Roman soldiers’ private parts.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

Corn-inthian columns with a uniquely American take on neoclassical architecture.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Look closely and you’ll notice that the color changes a third of the way up the tower.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Perhaps the most scandalous statue of America's first president.

A nostalgic bibliographic gem.

The site of the climactic scene from the classic horror film is now a historic landmark.

Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

Meet some of the most prominent figures in Black history through life-sized wax models.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.