Reza Masoudi Nejad Einstainturm February 15, 2018 Einstainturm (Eisenstein Tower), Potsdam, Germany, September 2013. NIKON D70 12mm · f/10.0 · 1/400s · ISO 200Architectural Einstainturm architecture Modernism blackandwhite Postdam Germany Log in or register to post comments