An abstract and eyecatching clock/fountain is the centerpiece of this little-known German city.

The first, and perhaps only, monument dedicated to Wikipedia.

A long spiraling walkway winds through the woods, and around a copper beech tree at the center.

An elevator into the Baltic Sea.

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

Countless stories attempt to explain Poland's mysterious J-shaped trees.

The natural mummy of the less than chivalrous Knight Kahlbutz.

It's always summer at the beach inside this former airship hangar.

This Berlin island is home to a flock of free-roaming peacocks, as well as a historic ivory folly.

This spectrum of a star was observed by one of the world's most accurate spectrographs. 

A historical observatory still in use by modern astronomers.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

A quaint Russian village in the middle of a German metropolis.

If you visit the burial place of King Frederick the Great, you'll likely find a couple of potatoes sitting on his tombstone.

This conical hill was built as a testing ground for an engineer known as the Glider King.

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

Taste freshly foraged yarrow and black locust blossoms at this ambitious cocktail bar.

Art installations, derelict railcars, and endangered grasshoppers all call this south Berlin park home.

Superb sweets await at the first Jewish bakery inducted into Berlin’s prestigious baker’s guild.

The non-native bovine herd was brought in to help conserve these Berlin wetlands.

You've probably seen these distinctive orange-tiled columns on the big screen.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

A replica of the Liberty Bell rang daily from West Berlin's City Hall throughout the Cold War.

A towering monument to war, located on a beautifully peaceful hill.