This igloo-like house on a hill was found by Streetcap1 of Youtube. It does resemble those ice houses here on Earth. There seems to be a tunnel entrance on its right side, but its so black that its difficult to make out for sure. It a place where most rocks look shattered and cracked, broken in several pieces, this odd thing is whole and unscathed. It must be a newer structure. Subscribe to Streetcap1s channel here.