Human skulls and bones are stacked in the ossuary room in the catacombs of Paris
Detail of human skulls and bones which are stacked in the ossuary room in the catacombs of Paris June 24, 2011. The ossuary holds the remains of about 6 million people in caverns and tunnels that are the remains of Paris' stone quarries. REUTERS/Charles Platiau (FRANCE - Tags: CITYSCAPE ODDLY)