A steam powered train that runs on city streets.

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

This old wooden funicular railway leads to a cemetery in the forest.

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

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

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

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

A tiny chapel clings to a precipice above Germany’s gemstone capital.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

This wooden hotel is a temple to German sustainability and forest conservation.

An abandoned swimming pool decays on the outskirts of Berlin.

A whimsical art tower at a Bavarian brewery includes a grotto for its mythical beer-brewing dwarves.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

This 8th-century Bavarian monastery is home to an exquisite Baroque-era library.

This extremely narrow tenement boasts a maximum occupancy of just two.

A tiny island is connected to the mainland by a private railway that residents travel in their own personal wagons.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

From Ancient Rome to WWII, Neupfarrplatz has over 2,000 years of history underneath its main square.

In 1830, cemetery workers in Cham unearthed a chamber housing thousands of skeletal remains from the 13th century, which can still be viewed today.

Housed in an old church, this hunting museum holds a collection of mythical bird-rabbit creatures.

This 600-year-old home seems to defy physics.

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

From Iggy Pop to David Bowie to Nick Cave, this regal music studio has served some of the all time greats.

The great Danube river starts here.