The ruins of a Duke's bucolic dream, where camels once roamed alongside "Dutch" windmills and faux-Italian vineyards.

Famously misunderstood wonder of the ancient world

Eighty million natural history specimens call this gargantuan museum home.

A historic fire call point.

The original burial place of this preeminent 18th-century Jewish philosopher was razed by the Nazis.

A shining memorial to a Belgian hero is said to bring luck to anyone who touches it.

A little sculpture with a large wardrobe.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Lavish royal estate punctuated with heated greenhouses.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

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

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Four alabaster giants contemplate the tides on the shore of Denmark.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

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

These 18th century gardens tell a rocky story of the son of Odysseus.

Living trees form the structure of an open-air palace.

Between Neo-Pagans and Neo-Nazis, these strange rock formations have a curious cult following and a very strange history.

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

Ruins of a German Castle on top of a towering stone pillar.

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

The fairy tale castle of the "fairy-tale king."

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