Inspired by "The Starry Night" this Dutch bike path turns into a glowing work of art each night.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

Crouch down, stretch tall, and be sure to flail your legs to pay homage to the Monty Python classic.

Constructed by forced laborers, this submarine pen is now a museum and war memorial.

This gilded emblem was once stolen by a Cookie Monster impostor, who demanded a charitable ransom for its return.

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

A bronze statue of Momo, a girl holding a huge ear, sits waiting to listen to anyone who needs it.

Striking occult iconography on a medieval German church.

After this historic church was destroyed by World War II bombing, its blackened shell was left standing as a monument.

An extraordinary mechanical calculator designed by the mathematician and philosopher Gottfried Leibniz.

This gateway to subterranean Hanover plays jazz, pop and rock to surprised passersby.

A spitting ode to a German serial killer.

One of the oldest wine cellars in Germany is now a restaurant beneath Bremen's town hall.

A stunning gilt bronze relief denounced by Hitler as "degenerate art"—even though it was dedicated to the Nazi leader.

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

One room inside this building mesmerizes all with its parabolic dome.

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

A beautiful display of nearly 50 bells crafted with a unique design and distinct sound.

This massive underground salt mine now holds a sci-fi theme park in its depths.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

This Transylvanian church has changed its denomination four times.

The Natural History Museum that time forgot.

Locals call it the "Give Peas a Chance" bridge because of its distinct graffiti.

The anatomical-pathological collection of a man who changed surgery.