This is part of the Francke Foundation Museum, a curiosity cabinet filled with different scientific and natural wonders.

A thought-provoking outdoor art installation sits in the seat of German law.

A collection of antique telescopes dot the halls of the university's astrophysics department.

A beautiful gorge filled with streams and waterfalls.

Revitalization efforts converted a former U.S. military heliport into a sprawling urban park.

In the summer of 1957, a massive architectural exhibition showed off the future of urban living in this German neighborhood.

Germany's longest suspension rope bridge.

The bridge that cost Germany a World Heritage Site.

A six-story, asymmetrical tower filled to the brim with scientific experiments.

This small university museum houses a priceless collection of scientific instruments.

A massive playground in the woods of Germany.

Before he was forced to flee the country under Nazi rule, Albert Einstein spent his summers in this custom-built lakeside house near Berlin.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.

This small train ride offers stellar views of the Grand Garden Palace.

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

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

A German artist built a home and garden filled with whimsical art pieces, like a massive, operational volcano.

World's only telecommunication tower with a wooden pinnacle.

A staggering collection of satellite models and actual flight parts.

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

A socialist building dedicated to teachers showcases one of the largest Soviet mosaics in the world.

A wonderfully versatile natural history curio cabinet preserved since the 1840s.

How did a lighthouse wind up in the middle of this landlocked German city?

This public observatory is home to the "celestial cannon," the longest pointable telescope in the world.