A tiny house showcases the busy life of a local gnome.

This historic Dutch newspaper building is covered with media-themed details—and one unrelated oddity.

An ancient Egyptian temple sits within a modern European museum.

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

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

A 14th-century church holds a unique monument to a German mathematician who dedicated his life to calculating the value of pi.

A relic of the old jail still stands in its original location.

Once housed in the towers of this Gothic church, this 17th century clock still ticks today.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.

Only a few walls remain of the last church the Pilgrims used before they sailed to North America.

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

A memorial commemorating the man whose name became synonymous with taking a picture in the Netherlands.

This institution has been serving up some of the best pancakes in the Netherlands for over a century.

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

This public toilet built in the famous Amsterdam School architectural style is a Dutch national monument.

A trio of red, white, and blue stones embedded in the streets of Leiden are markers of medieval territory and law.

A massive explosion that leveled hundreds of buildings in the city of Leiden is remembered by a waterside plaque.

A striking memorial to the Jews of Leiden who were murdered during World War II is scattered throughout the city.

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

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

A former plague hospital turned medical museum.

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

People have been placing babies on these lilies for photoshoots since the Victorian era.

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