Tourists in the interior of St. Peters Basilica in Rome, Lazio, Italy, Europehttps://www.robertharding.com/watermark.php?type=preview&im=RM/RH/VERTICAL/508-5485508-5485https://www.robertharding.com/licenses-explained/https://www.robertharding.com/preview/508-5485/tourists-interior-st-peters-basilica-rome-lazio-italy/