A Mars simulation in the southern Utah desert.

According to Hindu belief, this shallow island chain was created by a god with an army of monkeys.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A private collection of massive steel monsters guarding a Texas pipe works.

A giant scale model giving a sneak peek at what urban planners see for Shanghai by 2020.

20-foot tall lamp mumbles Swedish to celebrate the holidays.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

Lifelike statue of the Chinese philosopher in the bathtub.

An out-of-place slice of France, smack in the middle of Shanghai.

Beijing's expansive subterranean hiding spot now crumbles away as a tourist destination.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

This stunning, out-of-the-way Croatian monument commemorates a community's uprising against occupying fascist forces.

This huge metal monument is slowly being stripped to its concrete skeleton.

This massive concrete sculpture is said to be the heaviest communist monument on Earth.

An abandoned saucer-shaped monument in the Bulgarian mountains.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

This abandoned secret city is a crumbling wonderland of Soviet ruins.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

Old Danish castle immortalized in Shakespeare's Hamlet.

Micro-nation based around a nine-story high illegally built tower.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.