This modern arts center is built around a gem of late-Baroque architecture.

This Greek temple, open only an hour a day, was the site of a war of tastes between an architect and an artist.

Three floors of musical instruments coming from all corners of the world and hundreds of years of musical history.

Lavish royal estate punctuated with heated greenhouses.

Behind the pink curtain, Au Bonheur du Jour, an art gallery of erotic archives.

One of the world's few mounted blue whales, its jaws are hinged open allowing visitors to descend into a lounge.

Artwork tucked within the trees greets visitors with surreal sonic experiences.

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

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Hidden within a Netherlands crater is a stone bed that lets those who lie in it see the sky as a curved surface.