This 18th-century folly is one of Europe's rare "garden mosques."

The jaw of one of humankind's earliest ancestors on display at an overlooked geology museum.

A surprisingly detailed model of one of the most powerful telescopes in the world.

Over 12,000 hygiene oriented objects and exhibits.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

From morgue to urn, watch the whole process at this unusual educational attraction.

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

In this brilliant blue spring in Germany, legend has it that a sad mermaid learned to finally laugh.

This massive steel pyramid can be entered by a set of jagged steps that let visitors stand in its heart.

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

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

This extremely narrow tenement boasts a maximum occupancy of just two.

The first (but not only) upside-down house in Germany.

A German town is growing a building out of trees.

A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

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

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

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

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

You haven’t properly toured a winery until you’ve slept in an actual wine barrel.

This Rococo church is known as the most beautiful village church in the world, and does not disappoint.