An intricate and amazing house built by architect Karl Junker.

The prototype for all Nazi concentration camps.

No one seems to know who suffered the disappointment at this particular place.

After much poking and prodding, this island is decidedly not a magnetic anomaly, but it sure is pretty.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

The largest collection of medicinal plants in Australia is also home to a witch who will show you how to use them.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

No need to strap in for a "ride" on this walkable roller coaster.

Taiwan's last Chinese character letterpress preserves the dying art of Chinese character mold making.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

A secret passageway from World War II is now a quirky pedestrian shortcut.

A rare pod of derelict midcentury Futuro and Venturo houses lines a semi-abandoned beachfront resort outside Taipei.

This retro underwater observation tower would make the perfect lair for a sea-loving villain.

An elevator into the Baltic Sea.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

One of the most iconic neon ads of former East Germany.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

Tourists often confuse this beautifully ornate former cigarette factory for a mosque.

An engineering wonder at Pillnitz Castle protects a precious 230-year-old flowering shrub.

An extraordinary mechanical calculator designed by the mathematician and philosopher Gottfried Leibniz.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.