BERLIN (AP) — A pop-up art show featuring contemporary art, including video and audio installations, photography and traditional oil paintings, is set to open at Germany’s Bellevue Palace this week before the German presidential residence closes for renovation. At a press preview on Monday, German President Frank-Walter Steinmeier said he was pleased that the mostly emptied-out Berlin residence was being opened to art and to the public. “We need art,” Steinmeier said. “A democracy without free