An old department store turned Nazi prison turned artist commune.

One of the last remaining railway viaducts equipped with a transporter ferry.

One of the largest busts in the world celebrates the German city's erstwhile namesake.

This cheeky statue of a man defecating gold coins graces the facade of a medieval guildhall.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

One of downtown Berlin's last reminders of its Communist past.

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

Visitors dating back to the 1600s carved their marks in the stones of the iconic tower.

France's high-tech, future-themed amusement park.

A daring D-Day assault by U.S. Army Rangers is commemorated atop the high cliffs of this strategic point.

This ancient theater was once the home of fierce gladiatorial battles.

A Gothic cathedral created from volcanic rocks.

Stone memorial that's said to predict the death of the pope and the site of the Cadaver Synod.

A Nesting Doll of Churches.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

Wall after wall of this French seaside neighborhood is intricately decorated with seashells and corals.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

A chain of bells connect the California Missions and honor the legend of the "King’s Highway."

This stretch of beach along California's central coast is a busy highway for the largest seal in the northern hemisphere.

The unbelievably opulent home built for an infamous newspaperman.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.