The Endlose Treppe is a sculpture made by the Swiss artist Max Bill in 1991 for the philosopher Ernst Bloch. It is made of North American granite.
It stands near the Wilhelm-Hack-Museum in the city-center of Ludwigshafen am Rhein. According to the artist, the 19 winding steps of granite, which stand nearly 10 meters, are supposed to represent Ernst Bloch's "principle of hope".
Wikipedia https://en.wikipedia.org/wiki/Endlose_Treppe
Address 5 Lutherstraße, Ludwigshafen am Rhein 67059, Germany
Coordinates 49°28'49.176" N 8°26'37.583" E