The world's first zoo for microbes collecting the horrible and wonderful things living on and around us.

The world's oldest Jewish library was founded by Sephardic Jews in 17th century Amsterdam.

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

This unusual elevator doesn’t stop or slow down.

Europe's first floating restaurant is home to a hilarious legend.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

A floating cat sanctuary on an Amsterdam canal.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

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

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

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

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

The world's only museum devoted to the wonders of fluorescence.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.