Old Observatory

The Old Observatory is a building complex in Leiden featuring multiple domes and original telescopes from the 1800s. The site sits next to the botanical garden and includes a visitor center with displays about the history of sky observation.

The complex was built in 1860 to replace the original university observatory from 1633. It remained active until 1974, when astronomy work shifted to other locations.

The observatory maintains its educational role through guided tours, astronomy events, and art exhibitions focused on scientific themes.

The visitor center is open Wednesday through Sunday, providing access to historical instruments and information about astronomy work. Walkways through the complex are easy to navigate, and its location near the garden makes it simple to include in a larger city visit.

The building holds a chair associated with physicist Albert Einstein, who visited the observatory regularly during his time at Leiden University. This personal connection to one of the 20th century's greatest scientists makes the site meaningful for those interested in scientific history.

Location: Leiden

Part of: Leiden Observatory

Address: Sterrenwacht 5-9

GPS coordinates: 52.15490,4.48336

Latest update: December 14, 2025 14:21