This medieval castle was reconstructed by Carlo Scarpa.

Preserved behind glass, the ruins of a medieval building used to store human remains.

The crumbling ruins of an abandoned 12th-century monastery.

An amazing model of a whale's jaw bone pays homage to the region's seafaring traditions.

This church is said to have connections to the Knights Templars.

For years, the remains of this ancient Roman fortress were hidden under an orchard.

Nestled in the woods lies this land art project: a hybrid between park, maze and natural monument.

A ruined castle stands atop a hill surrounded by dragon lore.

This natural "sea of stones" was once used by the Romans as a quarry.

Once the longest swing bridge in Europe.

Next to the well-known retaining weir "Hochablass" is the former raft port for the city of Augsburg.

Centuries of warfare, tragedy, executions, and poetry come together in this 13th-century fortress.

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

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

In a divided Germany, Potsdam's "central" train station was relocated to the city's southern suburbs to avoid West Berlin.

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

Hidden in the forest are the remains of a former World War II chemical plant.

An Orthodox church inside a small "Garden of Eden" built by a man who had a vision.

This Dutch windmill has its roots in an American invention.

An army of sleeping knights sculpted by a self-taught local artist beautifully depict an old Czech legend.

Visitors flock to the historic birthplace of radiobalneology for its therapeutic radium treatments.

The rusted creatures wait to be discovered in Prague's botanical garden.

A peculiar samurai statue overlooks the center of Brno.

One of Belgium's oldest hospitals saw patients from the 13th to 20th centuries before becoming a museum.