Credits: data is credited to “© OpenStreetMap contributors”. The data is available under the Open Database License. | Graphics, adaptation and code are mine and are licensed under the Creative Commons Attribution-ShareAlike 2.0 license (CC BY-SA 2.0).

Floor relief water sculpture. Artist: Joseph Henry Lonas 1967/1968

OTFW, Berlin, CC BY-SA 3.0, via Wikimedia Commons

Resources:

• Joseph Henry Lonas on Wikipedia
• More about Art in Gropiusstadt: Kunst in der Gropiusstadt.