A steam powered train that runs on city streets.

1898 German railroad depot museum with working engines, steam train excursions, and hands-on displays.

The only remaining U-boat that is still floating never actually saw any action in World War II.

These jeweled relics have a scandalous and contested past.

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

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

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.

A historic steam train meanders along one of the most scenic rail routes in Germany's Black Forest.

Remnants of a cone-shaped Nazi bomb shelter.

A Neolithic burial site erected around 3000 BC.

This dockworkers' lunch joint has been left leaning by a century of storm floods.

This ancient oak tree plays matchmaker for singles willing to branch out from the usual dating scene.

These beautiful objects represent beautiful ideas.

Giant wind turbine with observation deck at the very top.

A preserved college lock-up that recalls a clubhouse approach to discipline.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

This peculiar museum offers hands-on interaction with seemingly intangible principles of mathematics.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

Fantastic views and thousands of love locks.

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

According to a satirical conspiracy theory that persists today, this German city of 300,000 is a hoax invented by the CIA.

This massive steel pyramid can be entered by a set of jagged steps that let visitors stand in its heart.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.