A person holds a windmill as people watch the sun rise as they join in a Beltane dawn celebration service in front of St. Michael's Tower on Glastonbury Tor, May 1, 2013 in Glastonbury, England. Although more synonymous with International Workers' Day, or Labor Day, May Day is celebrated by some as the beginning of summer and the chance to celebrate the coming of the season of warmth and light. (Matt Cardy/Getty Images)