Right about here there is a statue that was donated to Wilhelmshorst by an artist from Solingen (his name is Professor Wolfgang Körber). It is called
Architectura 2019 - "Das Werkzeug des Architekten"
and I already added it to Google Maps https://www.google.com/maps/place/Architectura+2019+-+%22Das+Werkzeug+des+Architekten%22/@52.3333912,13.0541196,18.33z/data=!4m5!3m4!1s0x0:0x1eb5231250ee4b3e!8m2!3d52.3331926!4d13.054098

it's about 6 Meters high 

Here are some sources:

https://www.maz-online.de/Lokales/Potsdam-Mittelmark/Michendorf/Kuenstler-macht-Wilhelmshorst-ein-grosses-Geschenk

https://wilhelmshorst-online.de/spendenaufruf-zur-aufstellung-einer-skulptur-auf-dem-goetheplatz/

https://wilhelmshorst-online.de/geniales-kunstwerk-auf-dem-goetheplatz-von-einigen-wertgeschaetzt-von-anderen-abgelehnt/

