This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

This historic stone bridge has an entire neighborhood clinging to its sides.

Over 12,000 hygiene oriented objects and exhibits.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

Abandoned bull fighting ring, slowly falling apart in Uruguay.

What was once a unique system of urban elevators is turning into a mechanical ruin.

The world's brightest bioluminescent bay.

The world's second largest single-dish radio telescope, once used to contact E.T.

The highest peak in Puerto Rico is home to a rare fern that can only be found on six trees at its summit.

Renowned restaurant tucked in a cave once occupied by buccaneers.

A macabre sculpture museum in the capital of Haiti fuses human bones with broken metal to create challenging contemporary art.

The royal seat of Henri Christophe, a formerly enslaved man who became Haiti's only king.

This iconic fortress was once the crown jewel of Haiti's national defense.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

North America's largest accredited model railroad museum.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

A Prada store in the West Texas desert that is never open for business.

A giant "X" symbolizes the blood spilled from the brutal Juárez drug wars.

Twenty-seven massive radio antennas on the high plains of New Mexico search for life on other planets.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

Monument to the cotton-destroying boll weevil.