Final resting place of the humble physicist who discovered X-rays, and made the invisible visible.

A collection of 4,000 thimbles that's more versatile than one might imagine.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

A quaint Russian village in the middle of a German metropolis.

King Ludwig I's collection of beautiful women.

A striking 12th-century-style castle built on the edge of a cliff.

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

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

The most visited, and possibly most controversial, museum in Germany.

A small but immensely extravagant palace built by the "Night King."

Started as a kitchen garden, now the second largest botanical garden in the world.

This simple apartment may have inspired some of the most important theories in the history of science.

World's largest permanent maze made of 18,000 conifers.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

One of the most powerful religious centers in the Middle Ages, dubbed the founder of Western monasticism.

This small red school was where Germany signed their surrender during WWII.

The opulent home that inspired Tintin's Marlinspike Hall and the adventures within.

Former hunting lodge of a duke who was an avid collector of impressionist works.

15,000 year old bison sculptures.

Lyon, France is home to two remarkably preserved Roman theaters, one dating back to 15 BCE.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

The great Italian Renaissance painter was laid to rest here in the Chapel of Saint-Hubert.

One of the world's most complex timepieces.

Hundreds of prehistoric stones, arranged in perfect lines in a French field.