Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

A store full of vintage and indie toys designed to bring out the kid in even the crustiest of adults.

Turning night into day in Victorian-era Austin to thwart a serial killer.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

These spooky and unusual stone formations create an underworldly landscape.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

Thousands of flamingos and other bird species flourish in these Camargue wetlands.

This historic stone gate tower is now just a lonely relic in the middle of a swamp.

This salt marsh in Southern France is as pink as the flamingos that inhabit it.

Historic medieval fortified city in southwest France.

Museum celebrating the ocean, with the largest wunderkammer dedicated to sea exploration.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

This winding road through an Italian canyon may be the most scenic drive in the world.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Erotic art covers the walls of the largest ancient pleasure palace.

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

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

A dismembered holy head stares out from her beautiful reliquary at the St. Dominic Basilica.

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

A 16th-century horror show built in a lovely Italian garden.