This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

It took over 100 years to decode this enigmatic epitaph for two buried brides.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

A statue dedicated to the antihero of the Nibelung legend.

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

The only town in the world with two exclamation points in its name.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

This bone-filled cave got its name after they found 140 bear skeletons inside.

This snug medieval lane is one of the narrowest streets in the world.

A giant portrait of an ancient king looms over the river.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

The little-known second castle that William the Conqueror built in York.

One of the oldest seagoing boats in the world can be found at the Dover Museum.

A fortified medieval basilica on the Caelian Hill preserves extraordinary frescoes and one of Rome's most beautiful hidden cloisters.

A celebration of the animation wizard's childhood home and antique railroad memorabilia collection.

Inside this museum, the history of the Walt Disney Family empire is on full display.

This ruined castle perched atop a rocky peak is a great place for a hike.

Iron Age "bog person" preserved for over 2,300 years.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

This ordinary street was made infamous by a legendary visit from the devil.

Home to nearly a third of the world's mud volcanoes, Azerbaijan is home to a messy, bubbling, and sometimes explosive landscape.