The Basilica is an important example of Roman and early-Christian architecture. It is fronted by sixteen Corinthian columns from a 3rd century Roman temple and a courtyard with a bronze copy of the statue of Emperor Constantine in the centre. The basilica was built at the end of the 4th century, but through the years part of it collapsed. It was restored in 1911, 1916, and 1937-38, and can now be appreciated as a mainly early-Christian construction, with Romanesque and late fifteenth century additions.