The building is composed of two parts: The porch, a standard Roman feature with front stairs going up to a platform surrounded by pillars with a door to the dome, and the dome, which was a huge circular room with a dome overhead. The dome room had a maximum height of 43.3 meters, and the diameter of the circle was exactly 43.3 meters. Because of this, a perfect sphere could fit into the room, with a diameter of 43.3 meters. | The building is composed of two parts: The porch, a standard Roman feature with front stairs going up to a platform surrounded by pillars with a door to the dome, and the dome, which was a huge circular room with a dome overhead. The dome room had a maximum height of 43.3 meters, and the diameter of the circle was exactly 43.3 meters. Because of this, a perfect sphere could fit into the room, with a diameter of 43.3 meters. |