The dome of the pantheon remains the largest structural dome ever constructed of unenforced concrete. It stands about 43m above the ground. To support the huge dome of the Pantheon, reinforcement was not used. The walls of the structure were made thick at the bottom, and it decreased as one went up.
It maintained the distinction of being the largest dome in the world till the Florence Cathedral with its dome surpassed the record in 1436. It stands out from all other historical buildings in Rome by still being intact in the form it once was. This was a place of worship among the early Romans.
The first time the Pantheon was built, it was built by Commander Marcus Agrippa. It had a long structure built between 27 and 25 BC. The Pantheon stood dedicated to the gods Venus and Mars. The latter was burnt in a fire in 80 AD.
The rebuilding of the Pantheon was taken up by Emperor Domitian. But the place of worship was razed down again in 110 AD by lightning. Emperor Hadrian took up the task of rebuilding the Pantheon in 118 AD. It was completed in 125 AD, but this time, the Pantheon took a circular shape.
It has withstood the ravages of time and shall be as it is for a long time to come. Today, the Pantheon is symbolic of the might of the Roman Empire that existed at a time.
The year 609 AD saw to the conversion of the temple to a church. It has tombs of many kings of Italy and even artists found a place here after death.