The Halle University Botanical Gardens

The Halle University Botanical Gardens have been in existence for more than 300 years, and were the first of their kind in Prussia.
Besides the conservatories, some of which are of historical interest, the various themed outdoor plant collections are also worth viewing. Also in the grounds of the Botanical Garden is the observatory dating from 1787–1788, which was built by the architect of the Brandenburg Gate Berlin, Carl Gotthard Langhans.