About Basilica of Maxentius and Constantine
The Basilica of Maxentius and Constantine is the largest structure in the Roman Forum and still has part of its roof as well as three of its colossal arches and vaults.
Initial construction of the Basilica of Maxentius and Constantine started under the Roman Emperor Maxentius in 308 AD and was completed by Constantine in approximately 312-3 AD. With its vast vaults standing unsupported, it is considered to be a triumph of Roman engineering.
Contrary to the religious connotations of its name, it is thought that the Basilica of Maxentius and Constantine would have, like other Roman basilicas, served as a meeting house and judicial or administrative centre.