Panorama view of the rotunda, providing a clear image of the three registers and colored marble.
Front exterior view of the Pantheon's porch. Visitors must pass through the large, monolithic columns to enter the Rotunda.
Exterior view of the dome; viewers can clearly see the step-rings and shallowness of the physical dome itself, providing extra stability
Detail of the portico vaulting; Pope Urban VIII despoiled the original bronze beams for weaponry and replaced them with timber.
A detail of the drum's exterior, showing the bricks oriented in an arch to provide even weight distribution.