A grumpy old water goblin guarding an old mill on the Devil’s Stream in Prague.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Countless grotesque faces stare out from this eerie Prague art wall.

One of Vienna’s oldest (and perhaps most haunted) alleys, allegedly with a bloody past that gave it its name.

A remarkable feat of Victorian engineering across the Firth of Forth.

Did the legendary Scottish knight William Wallace actually take refuge here after a major battle?

Glasgow's oldest pub has a proud literary tradition and possibly a ghost or two.

An angelic, yet demonic-looking figurine presides over one of Glasgow's most ancient streets.

The world's largest second-hand graces a clock surrounded by constantly changing flower beds. 

An opulent monument built for a duke who donated his entire fortune to the city of Geneva.

This artistic fountain display pays homage to this area's theatrical history.

Hidden in the garden of physicist Erwin Schrödinger's house is a life-size figure of a cat from his famous thought experiment.

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

Part of one of the largest flooded cavities on the planet, and littered with prehistoric animal bones.

Beautiful public park off the beaten path and away from tourists.

It's just another skyscraper, but it's shaped like '90s cell phone.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

The ancient water tanks remain some of the ruined city’s most beautiful architecture.

The remains of what was, not so long ago, the world's largest city.

Sip cherry liqueur at a bar dating back to 1840.

Eat the ultimate iteration of Portugal's most beloved pastry.