Berlin Observatory
The construction of the new Berlin Observatory proceeded from a cabinet order of 10 November 1830 according to the design of Schinkel. An approximately one hectare plot was acquired at a price of 15,000 Thalers in the present-day area of Berlin-Kreuzberg. The foundation stone was laid on 22 October 1832 and the observatory was ready by 1835, on the area currently bounded by the streets ″Friedrichstraße″, ″Besselstraße″ and ″Lindenstraße″. The southern end of the ″Charlottenstraße″ was later named ″Enckeplatz″ in honor of the director at that time and the observatory acquired the address of Enckeplatz 3 A (now: ″Enckestraße 11″).
Sankt Andreasberg Observatory
The Sankt Andreasberg Observatory Society was founded in 2008, aiming at building and operating an observatory for all people. At first, they wanted to build it from scratch on the Jordanshöhe. However, due to environmental protection constraints, it was decided in July 2013 to rent a building of the Internationale Haus Sonnenberg, about 1 km north of the originally designated site, and to repurpose it as an observatory. The constructions in and around the building were mostly financed by donations. The observatory was opened on August 22, 2014. The eastern front of the building is supposed to be extended by an observation dome.