In context of overlay "Things" – Sculpture – https://osm.org/node/13708559096 via StreetComplete 63.0:

Skulptur für die Käthe-Kollwitz-Schule
weiteres s.  Infotafel

Attached photo(s):
https://streetcomplete.app/p/336273.jpg
https://streetcomplete.app/p/336274.jpg