A fountain standing as a testament to a doomed alliance.

A marvel of Byzantine engineering under the streets of Istanbul.

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

A Romanesque tower appears when water levels drop.

Local legend says the remains of Father Christmas lie within the medieval grounds.

Now a museum, this building was once a 14th-century monastery and the place where the founder of the Dutch nation lived and was assassinated.

In the Netherlands, one of the world's largest private car collections can be found.

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

One of the Leiden's oldest pubs is also the birthplace of the Heineken star.

Graffiti covers the walls of a room where university students through the centuries have waited nervously to defend their theses.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

Albert Einstein would often sit in this chair during visits to the observatory to discuss science with Willem de Sitter.

This 11th-century castle sits so low you can't see it behind the surrounding buildings.

In the days before house numbers, these colorful signs held clues about various buildings' purposes.

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

A collection of biblical memorabilia.

Amsterdam's former hotspot for public executions and dissections.

This pirate-broadcasting-tower-turned-restaurant played a rebellious role in the history of Dutch television.

Sail in for a ’dam good slice.

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

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

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

A unique collection of gilded age mechanical pianos.

A public urinal so pretty, it was declared a national monument.