The oculus in dome of the Pantheon, former Roman temple, now Basilica of St. Mary and the Martyrs, UNESCO, Rome, Lazio, Italy

pantheon oculus dome architecture rome light ancient basilica italy circular design symmetry historical structure religious artistry stonework engineering marvel opening skylight cultural landmark heritage renaissance atmosphere breathtaking visual detail perspective lazio interior construction monument sacred architectural temple classical visitor tourism attraction iconic features site rotating shadows city life depth geometric