This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

The second tallest railway trestle bridge in America.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

This giant wooden treehouse within a sprawling garden has its own eatery.

This nearly invisible wire transforms much of the city into one big, symbolic home on the holy day.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

This monument remembers the first Japanese Americans forcibly relocated during World War II.

Overlooking Puget Sound sits a garden with a Buddhist prayer wheel and an elaborate labyrinth.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

A perilous medieval road leading right into the sea.

Apartment complexes built into huge repurposed natural gas tanks.

The legendary building that needed ghostly approval before being built.

This beautiful building in the heart of Manhattan's Financial District was empty for decades.

A bizarre house filled with an astounding array of collections.

This former railroad bridge was named after the great river that once flowed below it.

Need to book a room at the Hotel Pennsylvania? Just dial up 6-5000.

The corporeal remains of Napoleon III's dentist rest under this 15-story obelisk.

North America's oldest authentic African Village.

If you want to get married in the White Marble City of Ashgabat, you should do it in this surreal disco ball building.

This scenic waterfront swimming pool is the longest salt water pool in North America.

The first spinning jail built in the United States is the only one that still turns.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.