The Pantheon, Rome Italy

The Pantheon is the oldest building in the world that is still in use today. It was built in 125 A.D. Pantheon means "All Gods." The oculus - the opening in the dome of the Pantheon - is 30 feet across. The sun shines in through this "eye" and the rain comes in too - that's why there's drains built into the floor. I have been there when it's raining and they just gate off the wet area and allow the water to drain. It has been a Catholic church since 609 AD. Admittance used to be free and without appointment, but in recent years they have required you to pay 5 euros and make a reservation. We arrived early for our reserved time and they let us in without question.

Pantheon Ticket Website

The Pantheon was a site for the movie "Angels and Demons" starring Tom Hanks. A clip of that portion of the movie is here:

Angels & Demons at the Pantheon