This natural history museum houses one of the world's largest rat kings, a terrifying jumble of tangled rodents.

The oldest trees in Northern Germany.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

A spitting ode to a German serial killer.

The natural mummy of the less than chivalrous Knight Kahlbutz.

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

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

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.

These jeweled relics have a scandalous and contested past.

The mass grave of the 27 victims of the "Vampire of Hanover."

A Neolithic burial site erected around 3000 BC.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

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

The name doubles as an appropriate adjective for this small ossuary.

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

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

Take a walk in a recreation of ancient Rome.

The narrowest street in the world is in danger of closing up entirely.

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

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

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

This sprawling Jewish cemetery is one of the largest in Europe.

This small exhibition displays equipment and artifacts once belonging to the feared Stasi secret police.

The only microgravity tower in Europe can produce nine seconds of weightlessness.