The moon appears behind a cross on the Taxiarhes church a day before the Full Moon and supermoon in Markopoulo town, near Athens, Saturday, Aug. 9, 2014. Greece will celebrate the full moon with free musical concerts in several archaeological sites. The phenomenon, which scientists call a &quot;perigee moon,&quot; occurs when the moon is near the horizon and appears larger and brighter than other full moons. (AP Photo/Thanassis Stavrakis)