The temple of Janus is in Rome. Created by Numa Pompilius himself, it is entirely made of bronze. This is the main temple for Janus, but there are other small ones throughout the Roman empire. This temple is where the door Ianus Geminus was placed as well.
One of the seven hills of Rome, Janiculum, was named after Janus, due to his status as one of the most important Roman gods.
Many other European religions have a figure like Janus, even though there is no Greek Janus. Vayu, is the Hindu equivalent to Janus, the Hindu people prayed to their Vayu before any important event. He is even an Italian god today.
Although Janus rarely appears on Imperial coins, it is common to see him on Republic coins. This coin is a Republican denarius.
- The metaphor "Two-Faced" came from Janus with his twoheads and double nature.
- The name for the Latin word for gate is jauna, this was created from Janus' name.
- The word ianua came from the way Janus steps in and out of doors.
- Offerings to the Roman gods were given to Janus first, even before Jupiter, partly because he is the master of time, and he had much influence on the Roman people.
- By many he was considered the first king of Rome.
- He was sometimes thought of as the "Custodian of the Universe"
- He had quite a few days dedicated to him, but his main festival was held on January 9th every year. This was called the "Festival of Agonalia"