An eerie, derelict amusement park in Berlin.

This uber-quaint Polish village is known for its habit of painting elaborate floral motifs on just about everything.

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

This Belgian palace was long the domain of priests and aristocrats but is now being turned into an art commune.

A wonderfully kitsch bookstore the size of a supermarket.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

A moving memorial to the fallen and missing from WWI trenches.

Dummies recreate radiological discoveries from history.

The tiny Belgian town's ancient version of Mardi Gras involves eerie wax masks, sticks for warding off evil, and ostrich plume hats.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

A giant bug impaled on a 75-foot-tall needle.

Housing the groundbreaking maps and globes of Gerard Mercator.

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

Museum covers every step of the chocolate-making process, from cultivation to the finished product.

When you're a great Russian Tsar, even your vomit gets a statue.

This modern arts center is built around a gem of late-Baroque architecture.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

A Museum of Psychiatry in a still-operating mental institution.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

Theme park featuring miniature replicas of European monuments.

One of the deepest indoor swimming pools in the world.