https://www.cnet.com/news/this-giant-star-wars-r2-d2-is-actually-an-observatory/

Professor Zitt recruited a small team that included his father-in-law, Horst Helle, the master painter Klaus Ruffing and student volunteers to transform the university's domed-topped Zweibrücken Observatory into a giant version of the Star Wars astromech R2-D2. 

While the Star Wars makeover took place in September 2018, fans around the world have just started to take notice.