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

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

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

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This upscale streetwear store is hidden behind a fake Snapple machine in the back of a deli.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

This Detroit ruin was once a gothic bastion of its community, but now it stands as a haunting ruin.

Glass and concrete building designed by Albert Kahn.

Op-art architecture designed for happiness.

Apartment complexes built into huge repurposed natural gas tanks.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

The world's largest historic armory was established by independent citizens to defend themselves from the wars of larger forces.

Rock-hewn monastery complex with hundreds of cave structures tucked away into the mountainside.

A geological oddity topped with a 2,000-year-old pagan temple.

This Armenian monastery was carved out of cliffs and named after the spear used to stab Jesus.

The world's longest outdoor covered escalator system transports commuters through Hong Kong's hilly terrain.

Remnants of the most densely packed city in world history, that thrived on anarchy for 30 years.

The most famous location in China was home to whole dynasties worth of imperial rulers.

The deepest metro station in the world.

340-foot statue built to honour the Heroes of the Soviet Union.