Archeologists from all around the globe visit Ireland to study more about the Neolithic, Celtic, and Early Christian period that has archeological sites, such as Hill, The Burren, Newgrange, Glendalough, Skellig Michael, Clonmacnoise, Carrowmore, Drombeg Stone Circle, Ardmore Cathedral and Round Tower, and Innisfallen. Though archeologists know that the island is filled with some great sites, what was discovered that day was something they haven’t imagined.