Renaissance villa and gardens complete with a tormented colossus.

Years of archaeology, just chillin' by the water cooler.

This innocent-looking townhome is actually a subway exit.

The world's largest collection of intentionally useless inventions.

The topiary maze at the Habsburg hunting lodge.

The house that took a plunge into the facade of a museum.

Handsomely crafted representations of our round planet.

A tropical paradise just a short trip from the opera house is filled with beautiful winged creatures.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

This former quarry is now a picturesque gorge that hides a sunken lake.

Two stunning 17th-century libraries and a cabinet of curiosities.

An eerie, derelict amusement park in Berlin.

Down a cobblestone alleyway is a museum dedicated to Romanticism, with a secret garden.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

This massive library holds what was once the largest book collection in the world.

France's national museum of scientific and industrial instruments.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

This Denmark theme park is part family attraction, part experimental archaeology project.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

Ruins of a 10th century church tucked away deep in a botanical garden.

The final resting place of the poets Shelley and Keats.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This small collection of rare books was uniquely locked up for safe keeping.