This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

This miniature take on the Kremlin is one Dutch man's retirement project.

The world's first interactive human body museum also serves as a chair for a giant orange man.

Colorful and chaotic stacked hotel in North Holland.

A beautiful maze marks where three countries meet.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

The world's only museum devoted to the wonders of fluorescence.

Every summer local children form "pysja patrols" to save young birds that have wandered from their nests.

An encyclopedic collection of mammal penises.

Rising from the sea like a stone monster.

A sharp sculpture made of thousands of pieces of jagged glass.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

An eerie, derelict amusement park in Berlin.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

An undulating wicker beast looms peacefully atop a sand dune in Belgium.

An open-air sewer system that was covered piece-by-piece over 300 years.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

Climb inside an iron crystal magnified 165 billion times its normal size.

Lavish royal estate punctuated with heated greenhouses.

This extensive collection of dead bugs may be the world's most idiosyncratic and personal insect museum.

From dragonfruit to mangoes to durian this Thailand resort allows guests to stay inside all manner of giant fruit.