http://www.bbc.co.uk/news/world-europe-32897388 "Some 20,000 people in the German city of Cologne have been forced to leave their homes as authorities defuse a one-tonne bomb from World War Two. Schools and kindergartens - as well as the zoo - remained closed during the city's largest post-war evacuation. About 1,100 residents of a retirement and disability centre in the Riehl area were among those taken to safety. It is not unusual for unexploded bombs to be discovered in Germany. Allied bombers targeted Cologne in WW2. The deactivation of the one-tonne device, which was found near Muelheim bridge crossing the Rhine river, was planned for Wednesday afternoon." The gift that keeps giving.