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

This ancient ruined monastery has been destroyed by fire so many times that it seems like God hates it.

There has been an astronomical clock on this spot since the 14th century.

The "feral child" who appeared in Bavaria in the 19th century remains as much a mystery as his unsolved murder.

Remnants of a cone-shaped Nazi bomb shelter.

Amöneburg is a town perched on top of a basalt mountain in the middle of an ancient meteor crater.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

Tiny castle in the middle of the Rhine made you pay to pass.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A German apartment building hosting as many trees as human occupants.

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

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

This abandoned Belgian fortress is purposefully being left to nature.

Sculpture designed by Turkish artist and professor Mehmet Ali Uysal.

Hiding the longest subterranean river known in the world.

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

A little sculpture with a large wardrobe.

A Belgian self-built tower inspired by the Bible and ancient civilizations.

The Devil’s own choice when he needs a drink in Brussels.

Descend into the tunnels to experience the life of a coal miner.

A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.