A nuclear reactor created for Eisenhower's "Atoms for Peace" campaign is now used for research at a Dutch university.

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

Four giant movable street lights decorate this modern Rotterdam square.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

Most complete collection of Gymnosperms in the world.

An unassuming rod in the Netherlands was once the old standard unit of length for the entire Dutch empire.

Hop aboard a charming bog train to explore this rare open-air museum of peat.

The 20-mile causeway that separates the Netherlands from the sea.

The struggle of a small Dutch island against the sea.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

This giant wire frame man sculpture is crouched in contemplation.

For the holidays, the tallest broadcasting tower in the Netherlands turns into one of the world's tallest Christmas trees.

The gargoyles and grotesques of the 21st century are here—22 emoji built into a new building in the Netherlands.

This enormous storm barrier is one of the largest moving structures on Earth, with each arm taller than the Washington Monument.

The Rozenberg wind wall in South Holland makes for smooth sailing through the Calandbrug canal.

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

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

The largest flower auction house in the world.

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

The giant scales in this museum can still tell if someone is one of the devil's brides just by weight.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

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

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.

Spain's unique Mosque-Cathedral has been a place of worship for both Muslims and Christians throughout its history.