May 18, 2017May 18, 2017 One of the houses of the Heidelberg project in Detroit. Puzzling. http://ift.tt/2ruqN9Y Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Telegram (Opens in new window)Click to share on WhatsApp (Opens in new window)Like this:Like Loading...