The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

These unusual rooms on wheels are holdovers from the 1960s.

A monument to a Polish general who fought the American Revolution and became the "Father of the American Cavalry."

A 19th-century architectural wonder designed by the "father of the skyscraper."

The third version of this tall sailing ship sits, rusted and burnt, in Lake Ontario.

Secret Swing.

A fantastic place to see murals, and an important location in the history of Toronto's legal street art scene.

A forsaken wonder in the middle of the East Side neighborhood.

During segregation, this Orlando hotel hosted performers like Ella Fitzgerald and Louis Armstrong. Now it's a museum dedicated to preserving local Black history.

This 15-story mural celebrates the 50th anniversary of the musician's iconic "At Folsom Prison" album.

A replica of the first public theater built in California.

Art Deco stylings conceal the true nature of this bridge.

I Street Bridge is the heaviest swinging center bridge in the United States.

The California capital city once stood 10 feet lower than it does today.

Pillars made of 700 pieces of luggage climb to the ceiling of Sacramento Airport's baggage claim.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

This huge dam across the Colorado River caused an armed standoff between two U.S. states.

This twisty sign depicts the chain's first logo.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

Measuring approximately 200 feet long, Swampy is the world's largest alligator-shaped building.

The only one of New Hampshire's original 14 World War II watchtowers to survive in near-original condition.

The once-abandoned 140-year-old hotel used in the movie "In Dreams."

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

Infamous marsh filled with toxic waste, World War II-era London rubble, and dead mobsters galore.