The "Prussian Versailles" that is as glorious today as when it was built.

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

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

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

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

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

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

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

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

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

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.

The great Danube river starts here.

A beautiful but toxic fountain of mercury.

Stunning Roman aqueduct used for 1900 years and still standing.

One of the few remaining ancient aqueducts described by Frontinus as 'the most solemn testimony of the Empire.'

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

Home to a vast and influential collection of Shakespeareana.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.

It was once the base for a series of domestic terror attacks.

There’s a hidden military meme engraved on the World War II Memorial.