Observatory Museum

The Stockholm Observatory is an astronomical observatory and institution in Stockholm, Sweden, founded in the 18th century and today part of Stockholm University. In 1931, the new Stockholm Observatory, nicknamed "Saltis", was inaugurated on the Karlsbaderberget at Saltsjöbaden, near Stockholm, and operated until 2001.

There are records of daily weather observations from the observatory going back to 1754.

The Stockholm Observatory site at Saltsjöbaden was established with a 40-inch reflecting telescope from Grubb, built in 1931.

Source: Wikipedia