A large-scale steel sculpture entitled 'The Shadow Boxer' pays tribute to Nelson Mandela.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

Despite many attempts to finish this overpass, it has been abandoned since the 1970s.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

The rusting remains of the largest assembled WWII fleet on the West Coast.

A fine mixture of the old and the new topped with an art deco neon spire.

The huge granite obelisk that towers over a small California town.

Over 300 taxidermied animals in a Californian restaurant make for a taxidermist's dream and an animal lover's nightmare.

The home of an eccentric Edwardian gentleman is packed to the rafters with handcrafted items collected over a lifetime.

A wonderful display of arts and crafts handmade by local artisans in the Southern Appalachians.

The only rotating bar in New Orleans has been slowly spinning since 1949.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

A unique museum dedicated to the Gullah-Geechee people, housed within an old oyster cannery.

The first public building in Savannah to offer air conditioning was a luxurious cinema that still operates today.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

A vast Communist-era exhibition space in the Bulgarian capital.

The Pentagon is so large that it was planned like a city, complete with internal highway infrastructure.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

The original goat tower, the one that started it all.

Largest cave system in Africa.

One of Europe's oldest libraries.