Ajvatovica, the largest Muslim pilgrimage in Europe, dates back over 500 years. Legend has it that Ajvaz Dedo, an Anatolian dervish, prayed to God for water during a period of drought for 40 days and nights in front of a huge rock near the town of Prusac in what is now Bosnia and Herzegovina. On the last day, he fell asleep, only to find when he awoke that the rock had split in two, releasing a stream of water. By Konstantin Novakovic