The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

This abandoned hospital is one of the most haunted places in Costa Rica.

Disused penal colony features prisoner artwork, some sketched in human blood.

Sloth rehabilitation center in the jungle of Costa Rica.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This futuristic bridge is one of the longest self-anchored pedestrian bridges in the world.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

The oldest surviving presidential residence in the United States.

One of Philadelphia's largest murals resides hidden under this bridge.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

Hidden behind West Philadelphia rowhomes is a haven for migratory and local bird species both ordinary and rare.

An Irish Memorial commemorating those who perished due to potato blight.

This beloved marketplace mascot poops money and grants good luck.

Current docking place of the SS United States, the fastest transatlantic ocean liner.

This elaborate towering structure was once famed for its revolutionary height.

Yo, Adrian!

The abandoned coal loading dock is a canvas for unsanctioned art.

The first American department store, and home to the largest operating musical instrument in the world.