The spectacular history of spectacles on display.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

Europe's official "zero-level," the equator of elevation.

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

Sail in for a ’dam good slice.

This unusual elevator doesn’t stop or slow down.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

Seven mini rowhouses fill the gap between 54 and 70 Westerstraat.

The history and future of cannabis.

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

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

This lovely little burbling creek is actually a deadly waterway that has dragged down everyone who ever set foot in it.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

This natural "sea of stones" was once used by the Romans as a quarry.

20-foot tall lamp mumbles Swedish to celebrate the holidays.

Swedish mice can dine at the Nuts of Life restaurant or take a date to the amousement park.

Hotel designed by indie graphics artists.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.