This photo shows the Taj Mahal as viewed from across the Yamuna river, just downstream from the Moonlight Garden, late in the afternoon, with the setting sun on its west face and its north face in shadow. The Taj is flanked by a pair of large sandstone buildings. The one on the west (photo right) was a mosque; its twin (jawab, "duplicate") on the east side was added for reasons of symmetry. The jawab's practical function (if any) is unknown.