Go inside to really appreciate this 500-year-old technological masterpiece.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A curious fountain that has no water and includes Satan, a crab, and 9 giraffes.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

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

This ghost town in Belgium will lose its street art when it ceases to exist.

Located in the thermoelectric factory that once powered the entire city, this Portuguese museum is shockingly fascinating.

Built by crowdsourcing, this wooden foot bridge saved a part of Rotterdam that was languishing in wait of city funding.

Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

Elaborate tile work in this railway station tells the story of Portugal.

A small Portuguese cottage formed between boulders in the countryside.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

At 207 feet, one of the world's longest continuous escalators.

Pull up and have a drink at a museum filled with hundreds of years worth of shipwreck artifacts.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

Remarkably preserved body discovered in a peat bog.

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The earliest known map to show America, discovered by accident at a Paris bookshop.