One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

A little-known subterranean street runs under some of the best-known buildings in Chicago's River North.

This enormous World War II relic is one of the largest wooden structures in the world.

Amid skyscrapers and traffic exists this unique aquatic ecosystem.

A bronze plaque marks the site of the only show the "King of the Soul Singers" ever missed.

Where experiments are conducted on all things wood.

A largely forgotten and touching neoclassical marble fountain overlooking a bear mound effigy.

A wealth of local folk art, antiques, and curios, without ever leaving your car.

This tiny train shuttles passengers to one of Northern Ireland's most spectacular sights.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

Niagara Falls holds a special place in Nikola Tesla's history, so they put a statue on it.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

If it hadn't been caught in time, a flaw in the design of this Manhattan skyscraper could have led to its collapse.

A remnant from the golden age of aviation still in use today, Pan Am's Clipper service took off from this Art Deco gem.

An abandoned horticulture institute gloomily presides over rows of derelict and vine-wrought greenhouses.

This fancifully decorated Victorian home in New York’s Hudson Valley is the only known fully domed octagonal residence in the United States.

A century-old historical movie theatre that plays a mix of independent and mainstream films.

A 19th-century politician who died after walking home in a blizzard is honored with this Manhattan statue.

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

This Manhattan skyscraper is a reminder of the brief but glorious age of urban air taxis.

The "lovely red Vega" of the legendary record-settling pilot.

This lovely pocket park is one of the most under appreciated in D.C.

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

There’s a hidden military meme engraved on the World War II Memorial.