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.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

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.

This large, circular tomb is the final resting place of the first emperor of Rome.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.