The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

Anyone can control this glittery light installation with just a phone call.

An extensive collection of ancient Egyptian artifacts and mummies.

The long, arduous journey of the stones of the Abbey of New Clairvaux.

An ever-updating collection of retro Americana.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

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

A popular tourist cave with a dark past.

Hidden inside a gift shop that doubles as a museum, this gargantuan yo-yo can only be operated by crane.

This ultra-modern California span is actually a titanic solar clock in disguise built by famed architect Santiago Calatrava.

This lesser known Hearst estate is a fairytale village built from the stolen bones of historic European buildings.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

A tourist attraction founded around a slumping cabin.

A watering hole where the options for seating include a bar, patio, or subterranean cave.

Dentist's hated concrete colossi are now beloved icons of the community.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

A psychedelic labyrinth on the San Francisco bay.

A huge musical instrument played by the ocean.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

The largest collection of handbags in the world, the oldest of which were used to carry Bibles, primarily by men.

Colorful and chaotic stacked hotel in North Holland.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

A luxury hotel housed in a former 15th century Gothic church.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.