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Rome/Vatican
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Arch of Janus

Arch of Janus
Photo: MM, Public domain

The Arch of Janus is the only quadrifrons triumphal arch preserved in Rome. It was set up in the early 4th century AD at a crossroads at the northeastern limit of the Forum Boarium, close to the Velabrum, over the Cloaca Maxima drain that went from the Forum to the River Tiber. The significance of the arch is poorly understood: it is thought to have been a boundary marker rather than a triumphal arch.

From Wikipedia, CC BY-SA 4.0.

Address
Via del Velabro, 5
Hours
Closed · opens 10 am
Weekly hours
MonClosed
TueClosed
WedClosed
ThuClosed
FriClosed
Sat10 am–2 pm
SunClosed

Place data from OpenStreetMap, © OpenStreetMap contributors, ODbL.

Also listed in Overture Maps open data.

Updated 12 Oct 2026. Something wrong? Tell us.