Templar knights fleeing persecution are said to have left this sword in stone as a landmark in 1307.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

A museum that dives into Sweden’s maritime past through preserved shipwrecks and interactive exhibits.

A local student's chance encounter with Keith Haring led to the creation of one of Europe's largest murals.

The mysterious “claw marks” said to be left by the Devil on Pisa’s famous cathedral.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

Fortified medieval tower house with lovely roof garden.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Five candy-colored villages on the Italian Riviera.

This tiny chapel withstood a massive mudslide and flash flood.

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

The bomb-ravaged remains of of a colossal Neptune.

The other, lesser-known, Sistine Chapel, sits over 500km away from the Vatican City in an Italian port City.

Every year, the town of Menton, France, turns lemons and oranges into giant sculptures depicting windmills, dragons, and more.

This strangely dressed taxidermy creature has a heartbreaking story.

Today, Kent's medieval monarchs hold court on a busy pedestrian thoroughfare—or at least their statues do.

One of England's most famous churches hides a pair of little known architectural treasures.

This skewed English house has looked like it's going to fall over for centuries.

Banksy's image of a naked man dangling from the window of a sex health clinic.

After protestors toppled a statue of a 17th-century slave trader, the pedestal where it once stood remains unoccupied.

The wreck of a World War II cargo ship has become an unintentional time capsule at the bottom of the Red Sea.