The dome of the Pantheon is one of the masterpieces of Roman architectural engineering. Its diameter is 44.4 meters, equal to the height of the temple. In order to reduce the overall weight of the dome, different coatings of different materials are used from bottom to top. If time permits, we must arrive here at twelve o'clock. The sun shines through the dome directly into the Pantheon. It shines brightly and has a feeling of entering heaven. In addition, Renaissance giant Rafael was buried here.