Access the Pantheon, without queuing, with your ticket booked in advance. Visit comfortably at your own pace. The Pantheon, temple dedicated to all past, present and future divinities, built in 27 BC. by Agrippa and rebuilt by Emperor Hadrian after the fires of 80 and 110 AD. This building, as well as for its history, is famous for the grandeur of its structure. The singularity of this building is due precisely to this oculus which allows internal lighting and from which, during the month of Pentecost, a rain of red petals falls.