A floating cat sanctuary on an Amsterdam canal.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

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

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

One of Amsterdam's narrowest houses is located right across the canal from its widest.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

This museum housed in a former brothel explores the past and present of sex work in Amsterdam.

The world’s first interactive human body museum also serves as a chair for a giant orange man.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

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

Incredible labyrinth of man made caves.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

Science meets wall art to highlight the beauty of famous mathematical equations.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

Four giant movable street lights decorate this modern Rotterdam square.

A former plague hospital turned medical museum.

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

Unchanged for centuries, this medieval library keeps its books in chains.

This large sand dune in the Netherlands is home to wind-whipped trees with "floating" roots.

The "Little Ones," show Portugal in full miniature splendor.

A forgotten remnant of the Soviet Union, Transnistria is an unrecognized country hidden behind a heavily militarized border between Moldova and Ukraine.

Apparently, Hell has waterfalls in Slovenia.

This micro-nation may be some sort of prank, but its constitution sure seems official.