The ECKSTEIN pop-up store (located at Lange Gasse 16 in downtown Tübingen) was the University of Tübingen's participation space — a place for dialogue between science and society. Realized as part of CIVIS – Europe‘s Civic University Alliance, it offered an experimental space with a European reach. ECKSTEIN was coordinated by the CIVIS Open Lab and the Public Engagement of the Excellence Strategy in cooperation with the Center for Media Competence. The project was supported by external partners such as the Verein der Freunde des Zimmertheaters e.V., the Retour second-hand market, the Bruderhaus Diakonie, and the Hanfingenieur company.