A medieval gate once used as a prison and how home to a city museum.

This Late Gothic building that once housed Erasmus is now known as the filming location of "Suspiria."

An Orthodox church inside a small "Garden of Eden" built by a man who had a vision.

On high feast days, the entire blue-glass front of this modern church opens up to reveal the small wooden church inside.

The remnants of a fictional Viking village film set now serve as an educational and historical hotspot.

This private museum is packed with 20th-century traffic and technology artifacts.

This impressive castle looms over small German town.

An incredibly well-preserved barbershop from the 1920s was transformed into a tiny local museum.

While you wait to cross the street at a traffic light in Mainz, you might notice that the light is staring back at you.

A historic casino where Dostoyevsky is said to have lost it all on a single spin of the roulette wheel.

Oddly enough, a pair of Wolfs funded the construction of this Little Red Riding Hood sculpture.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

This decommissioned nuclear power plant offers tours of its Communist-era control room and reactor hall.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

This tremendous timepiece was once the largest cuckoo clock in the world.

The last Tsar of Russia constructed this private church just so he could attend services when visiting his wife's hometown.

These tenacious 14th-century towers defied demolition and are now a fairytale vacation rental.

A serious museum dedicated to two German comedians.

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

One of the most well-known city festivals in the world.

Remnants of a cone-shaped Nazi bomb shelter.

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

The monumental home of Prussia’s eccentric "Cannon King."

An exquisite panometer representing Dresden as it was from 1695 to 1760.