A gothic church spire sits atop this skyscraper, the tallest church in the world.

A tiny basalt mountain with an observation tower overlooking the beautiful Bavarian countryside.

A man-made slag heap that you can "ski" down, and is home to the world sandboarding championships.

Fantastic views and thousands of love locks.

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

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

This strange building looks like a medieval fortress crashed into a 1960s Brutalist office block.

Giant wind turbine with observation deck at the very top.

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

Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

A German town is growing a building out of trees.

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

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

The largest brick bridge in the world.

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

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

These beautiful objects represent beautiful ideas.

The nerve center of a massive, state-of-the art radio telescope that sprawls across Western Europe.

A set of 27 bamboo tubes creates an eerie soundscape that changes with the wind.

An ingenious Dutch land art project uses grass ridges to cut airport noise pollution in half.

Dutch woodpile home in the forest.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

A 1:20 scale piece of the Netherlands commissioned by a queen lets visitors take a stroll as giants.