An egg hangs in the air from the force of a jet of water from a fountain in Pedralbes monastery in Barcelona on June 05 2010. The dancing egg, or 'L'ou com balla' in Catalan is a Corpus Christi tradition dating back to the the sixteenth century. The egg is emptied and wax is added as a counterweight, which when positioned over the fountain starts turning without falling. The surround are usually decorated with flowers and fresh fruits, such as cherries. AFP PHOTO / JOSEP LAGO (Photo credit should read JOSEP LAGO/AFP/Getty Images)