The Burcht van Leiden is an old shell keep in Leiden constructed in the 11th century.
The Hooglandse Kerk is a Gothic church in Leiden. Its earliest parts date back to the last quarter of the fourteenth century.
The Hortus botanicus of Leiden is the oldest botanical garden of the Netherlands, and one of the oldest in the world.
The Corpus Museum is a human biology interactive museum, located in Oegstgeest, near Leiden, in the Netherlands.
Leiden University Library is a library founded in 1575 in Leiden, Netherlands.
The Leiden Weigh House is a Rijksmonument located on Aalmarkt street.
The Bibliotheca Thysiana was erected in 1655 to house the book collection of the lawyer Johannes Thysius.
