Petra, Jordan: Huge monument found 'hiding in plain sight' - BBC News
PETRA - JORDAN, FEBRUARY,21: SYmbol of Petra - Treasury Monument and plaza in antique city on 21 February, 2012 in Petra, Jordan. Petra has been a UNESCO World Heritage Site since 1985 Stock Photo - Alamy
PETRA, JORDAN - FEBRUARY 21: Treasury Monument in antique city on February 21, 2012 in Petra, Jordan.