This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Architectural monsters are devouring this palace's every door and window.

The painting on an aptly named street honors the 1980s slasher movie.

The castle still holds traces of the abandoned Roman fort it was built atop.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

This giant glowing "beanpole" adds much-needed pops of color to an otherwise drab power plant.

The great Danube river starts here.

The hidden lair of an alchemist rediscovered in a 2002 flood.

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

Macabre astrological automaton clock dating to the late 1400s.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

Da Vinci's equestrian statue, 500 years in the making.

A colossal sculptural lion built by the same man who designed the Statue of Liberty.

The fairy tale castle of the "fairy-tale king."

Daily jousts and dancing barrel makers in Munich's mechanical clock.

A symbolic graveyard for the villages that perished during the Nazi invasion of Belarus.

It houses the remains of a 17th-century version of the Titanic.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

This homeless brass fox tugs at your heartstrings from the foot of a Stockholm bridge.

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.