The largest drain hole in the world.

If you dial the number in this abandoned office window "Sam Spade’s" secretary will ask you to leave a message.

This graffiti-covered bridge is the quintessential vision of a place for disillusioned youth to escape the complexities of burgeoning adulthood.

More than a century old, this trading post resides in the Navajo Nation.

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

This remarkably simple jail went over a century without an escape.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

More than 700 species live within this murky marvel of a swamp on California's coast.

A plaque and memorabilia collection mark where A&W got its start.

The only parking meter in the entire town, it is surrounded by 100 free spaces.

Before it was abandoned and left to rust alongside the road, this riverboat starred in a John Wayne movie.

An ominous concrete cube cuts a dystopian silhouette atop this California mountain.

The beauty and the beast of hydraulic mining is on full display at this California Historic State Park.

The final resting place of the Emperor of the United States and Protector of Mexico.

The peaceful gravesite of a rugged wild west gunman echoes the touching story of his last days.

Inside this museum, the history of the Walt Disney Family empire is on full display.

America's most famous piece of self-built architecture.

A museum dedicated to the history and exploration of both popular music and science fiction.

The site of Paul Revere's historic two lantern warning.

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

City Council meetings still happen in this historic building, impeccably preserved on the inside.

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

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

The walls of America's oldest masonry fort famously "swallowed" cannonballs.