A medieval weapon rumored to have been used by the brilliant poet himself.

This precariously perched fortress was once ruled by a crow-worshipping baron.

The bomb-ravaged remains of of a colossal Neptune.

The world's most active stratovolcano is almost always erupting.

Romans built the world's tallest artificial waterfall in 271 BC.

One of the largest caves in the world open to the public.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.

Virgil's many-mouthed gateway to the underworld.

This Italian foot path winds through the mountains via 52 individual tunnels.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

This 16th-century monastery has been turned into a surrealist architecture compound.

An Italian hillside ghost town.

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

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

2300-year-old Roman road connecting the empire.

Old Danish castle immortalized in Shakespeare's Hamlet.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Goethe's "Faust" was inspired by these rock formations known as the "Devil's Pulpit" and "Witches' Altar."

On the highest peak in the Harz Mountains, science and the occult faced off in a failed attempt to turn a goat into a boy.

This enchanting mountain plateau celebrates spooky local folklore.

An ornate Thai pavilion in the middle of Sweden.

A 130-year-old urinal is the oldest of Stockholm and perhaps all of Sweden.

A geological wonder that helped fuel myths of trolls and giants.