Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

The European equivalent of the Hollywood Walk of Fame is slowly spreading over the entire city.

A large measuring stick marks the lowest point of a country that is partially under sea level.

A condensed piece of China floating in a Dutch harbor.

The Rozenberg wind wall in South Holland makes for smooth sailing through the Calandbrug canal.

A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.

A huge teapot illuminates a home for the elderly.

The birthplace of most all of Europe's space missions is here on the Dutch coast.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

A Netherlands hotel where you can sleep inside a wine barrel.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

Go inside a revolutionary, cage-less zoo where 35 species live and some of them roam free alongside their human visitors.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

A public urinal so pretty, it was declared a national monument.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

Also known as the Square Colosseum, this building is a prime example of fascist-era rationalist architecture.

This curious, round temple is the oldest still-standing marble building in Rome.

This ancient market is often referred to as the oldest shopping mall in the world.