A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

The tallest outdoor elevator in Europe rockets passengers on a dizzyingly precarious ride to the top of a mountain.

This freshwater spring fills with 10,000 gallons of water per minute.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

This sprawling bookstore spans four floors and has more than a million books in stock.

Shoreline strewn with the remains of ghostly fallen trees.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

Countless stories attempt to explain Poland's mysterious J-shaped trees.

Peek through a transparent pyramid and drink in the mountain made of books.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

Moss and stone turn this waterfall into an otherworldly liquid veil.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

Only known mainland rookery of the threatened Stellar sea lion.

A seemingly endless landscape of pure salt stretches far across Bolivia.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

A striking 12th-century-style castle built on the edge of a cliff.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

A battle between nature and architecture in the Cambodian jungle.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

Keshwa chaca, among the last handwoven Incan bridges, crosses Apurimac Canyon in Peru.