Leiden

The Hortus botanicus of Leiden is the oldest botanical garden of the Netherlands, and one of the oldest in the world. It is located in the southwestern part of the historical centre of the city, between the Academy building and the old Leiden Observatory building.

Naturalis Biodiversity Center (Dutch: Nederlands Centrum voor Biodiversiteit Naturalis, Naturalis for short) is a national museum of natural history and a research center on biodiversity in Leiden, Netherlands. It was named the European Museum of the Year 2021.

The Burcht van Leiden (Dutch pronunciation: [ˈbʏr(ə)xt fɑn ˈlɛidə(n)]; Fort of Leiden) is an old shell keep in Leiden constructed in the 11th century. It is located at the spot where two tributaries of the Rhine come together, the Oude Rijn and the Nieuwe Rijn.

De Valk is a tower mill and museum in Leiden, Netherlands. The current tower mill is the third mill built at this location.

Museum De Lakenhal is the city museum of fine art and history in Leiden, Netherlands. Founded in 1874, its collection ranges from early works by Rembrandt van Rijn and Lucas van Leyden's Last Judgement to modern classics of De Stijl and artworks created by contemporary artists such as Claudy Jongstra, Atelier van Lieshout.

Rapenburg is a neighbourhood in Amsterdam, Netherlands. The main street is also called Rapenburg.

Rijksmuseum Boerhaave is a museum of the history of science and medicine, based in Leiden, Netherlands. The museum hosts a collection of historical scientific instruments from all disciplines, but mainly from medicine, physics, and astronomy.

Leiden University Libraries is the set of libraries of Leiden University, founded in 1575 in Leiden, Netherlands. Holdings include some five million volumes, one million e-books, ninety thousand e-journals, two thousand current paper journals, and three thousand cuneiform tablets.