See how paper is made the old-fashioned way.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A scenic UNESCO site that doubles as a habitat for various forms of wildlife.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

Climb inside an iron crystal magnified 165 billion times its normal size.

A statue commemorating 'the greatest inhabitant of Amsterdam of all time.'

This monument pays homage to a classic Dutch tune.

One of Amsterdam’s most popular cultural and recreational complexes is on the site of a former gas works.

This Dutch statue is a monument to the fictional shrew who brought doom to the city of Stavoren.

The Siege of Naarden ended in 1814, but the cannonballs embedded in the town church remain.

An idyllic hotel that gave its name to a supposed shadow government.

The struggle of a small Dutch island against the sea.

In 1988, jazz legend Chet Baker fell to his death from a window of this hotel facing Amsterdam Centraal.

Widely advertised as Amsterdam’s narrowest street, this passage was once a highlight of the Red Light District before its windows closed.

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

The cutest way to stay safe in traffic.

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

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

Rejoice at Amsterdam's ‘pop temple,’ a former church reborn as a raucous music venue.

This still-celebrated home was a radical architectural experiment in 3D De Stijl.

The mirrored section takes the shape of Hebrew characters when viewed from above.

A seven-century-old jail tells a not-so-pleasant history of crime and punishment.

A UFO-shaped event building originally intended to be a science museum showcasing the future.