Inside this small museum resides a strange mix of miniature collections passed down over time.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

Giant wind turbine with observation deck at the very top.

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

From Nazi chemicals to the CIA, this architectural marvel has played a fascinating role in German history.

An engineering wonder at Pillnitz Castle protects a precious 230-year-old flowering shrub.

Four-story slides send people whizzing through the math department at this Munich university.

A German town is growing a building out of trees.

The first (but not only) upside-down house in Germany.

A university observatory dome painted to resemble the beloved 'Star Wars' droid.

One of the most easily accessible examples of the rare 1960s UFO houses.

Solar observatory doubles as a daring display of Expressionist architecture, much to Einstein's chagrin.

Crop circles inspired this whimsical garden in Germany.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

Metro station with a claim to rock n' roll fame.

The largest brick bridge in the world.

A Nazi concentration camp and Anne Frank's place of death.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

Hamburgers are intensely proud of their tunnel beneath the river.

Bursting forth from a historic German neighborhood, these day-glo palaces are now a bright fixture in the town.

This painted Lego bridge is the product of over a century of locomotive history.

An industrial relic is now one of Europe's most staggering art spaces.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.