An unusual vending machine designed to support mourners during funeral ceremonies at Zurich's largest cemetery.

Early habitat dioramas and home of the elusive gaff, the skvader.

The library's graceful rotunda is like a bibliophile's temple.

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

A top-secret bunker now turned museum, is an eerie look at what life would have looked like in the event of nuclear war.

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

A delightful but little-known public observatory and planetarium in Munich.

WWII rocket launchpad in rural Germany and site of operation backfire.

This German "living museum" is maybe a bit too immersive.

The NASA scientists behind Apollo 11 started out developing Nazi weapons at this abandoned German rocket factory.

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

This East German military command bunker was ready for World War III.

A former Nazi lookout tower with a magnificent view of the Rhineland.

This historic funicular system combines the old with the new while offering delightful views over the surrounding valley.

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

Hitler's bleak vision of relaxation still stands as a mostly abandoned 10,000-room resort complex.

The ruined remains of the airport Claus von Stauffenberg departed in his failed attempt to kill Adolf Hitler.

The last bastion of Roman presence north of the Alps looms over a German town.

Remnants of an exploded schooner and wrecked submarines form a breakwater.

Retirement home for giant obsolete machines.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

A 12th-century fortress containing some of Berlin's oldest buildings.