A true Valhalla for cactus and succulent lovers.

An icon of International Style architecture on the outskirts of Rotterdam.

An art installation memorializing a tram stop, which became a tram stop.

Four giant movable street lights decorate this modern Rotterdam square.

A nearly 25-foot concrete sculpture of Sylvette, Picasso's muse.

A 20th-century naval quarantine center is now a local park.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.

A strangely curved lamppost stands tall over this avenue in Rotterdam.

Inside this metro station is a section of the city's former medieval fortification.

This small museum located under the famous cube houses, is home to some 30,000 chess pieces.

A huge teapot illuminates a home for the elderly.

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

A statue of the second-tallest Dutchman in history.

An enormous Polaroid picture adds an artistic flair to Rotterdam.

This basement museum explores the art and artistry of fascism.

Amsterdam's Red Light District leaves little to the imagination.

This collection of 20th-century toys is filled with a lifelong personal toy collection brought from the U.S. to Amsterdam.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

This cheese shop also houses a museum devoted to Dutch dairy.

A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

The world's only museum devoted to the wonders of fluorescence.