Prüm explosion

On 15 July 1949 an ammunition depot on the hill of Kalvarienberg in the Eifel mountains exploded. The cause of the explosion, in which the town was heavily damaged and 12 people killed, was never discovered. The crater, which is still visible today, is one of the largest man-made explosion craters in existence. A cross on the Kalvarienberg ('Calvary Hill') commemorates the victims of the disaster.