Most believe however that the hole in its roof is a testament to rome s warm climate.
Pantheon rome hole in roof rain.
The hole in the top of the pantheon was to let in light and air.
And at least partially to let out smoke from candles lamps and torches you have to remember that at the time the pantheon was.
An architectural masterpiece no one quite knows how they rendered such a large dome from concrete.
Obviously being open to the elements means it also rains inside the pantheon but a gently sloping floor and 22 well hidden holes help the water to drain away.
Another beautiful effect takes place at pentecost when rose petals are sprinkled through the oculus after the annual mass.
Actually it s not covered because a roof could deteriorate the internal structure of the building.
The pantheon rome 8 31 smarthistory upon entry visitors are greeted by an enormous rounded room covered by the dome.
The oculus at the top of the dome was never covered allowing rainfall through the ceiling and onto the floor.