Botanical Garden of Ruhr University Bochum

The Botanischer Garten der Ruhr-Universität Bochum , also known as the Botanischer Garten Bochum, is a botanical garden maintained by the Ruhr University Bochum. It is located at Universitätsstraße 150, Bochum, North Rhine-Westphalia, Germany, and open daily without charge.
The garden was founded in 1968 and subsequently has been continuously expanded and improved. It opened to the public in 1971, with later developments as follows: tropical house, 1976; desert house, 1988; Chinese garden, 1990; savannah houses, 2000.

Wikipedia