An exhibition by Danish artists in Berlin has been closed because of threats received over a photo deemed to be offensive to Muslims, organizers said on Thursday. The exhibition, which opened in central Berlin on February 22, has been closed to ensure the safety of staff and visitors, Ralf Hartmann from the artists' collective Kunstverein Tiergarten said. The show by Danish art group Surrend is aimed at depicting what they say is the absurdity of extremism in all religions. One of the 21 photos is of the Kaaba – the cube-shaped building inside the Grande Mosque in Mecca – with...