A whimsical bridge adorned with decorative dragons.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

A 11-foot former president stands on a Kosovo street that also bears his name.

A futuristic, brutalist masterpiece that is also strangely prison-like.

This massive monument was unveiled the day Kosovo declared independence from Serbia.

The oldest surviving wooden bridge over Rhine lets travelers cross easily from Switzerland to Liechtensten.

The ominously named cave is home to some remarkable ancient art.

The largest stone moai on Rapa Nui.

In the Middle Ages, villagers would sound this stone trumpet to boost fertility and coax fish to shore.

This large round boulder is said to emit spiritual power, but it may just be magnets.

The world's most remote airport.

This was once the center of the Birdman cult, and is now a World Heritage Site.

Mother Nature outdoes herself with this stunningly beautiful set of caves carved into marble.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

This pun was simply waiting to come to life, and one defense contractor made it so.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

The Sun King's military models, saved from the Louvre.

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

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

This Luxembourg cave is covered in cryptic looking marks left by mining activity.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

A preserved college lock-up that recalls a clubhouse approach to discipline.