The remains of the ancient town can be visited
Arco di Giano (Arch of Janus)

The Arco di Giano, known as the Arch of Janus, is an ancient monument in Rome. This four-sided structure, a Quadrifrons, was built from bricks and Roman concrete and once clad in marble. It is located at the northern end of the Forum Boarium.
History+
Originally, the structure was mistakenly interpreted as a temple of Janus, a name that has persisted to this day. Later, it was considered a triumphal arch, supposedly erected in the 4th century in honor of Emperor Constantine. Today, it is believed to have been a covered intersection that served as a meeting point for merchants.
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