Anybody bother to do a search on 'Rome catacombs'? Interesting stuff. Those skeletons don't exactly look like they belonged to adults.
Also, I've been seeing this image of a cloaked man killing a bull showing up, but didn't know what it was. Turns out it's associated with a Roman cult:
>Mithraism, also known as the Mithraic mysteries, was a mystery religion centered on the god Mithras that was practised in the Roman Empire from about the 1st to the 4th century CE. The religion was inspired by Persian worship of the god Mithra (Proto-Indo-Iranian/Vedic Mitra), though the Greek Mithras was linked to a new and distinctive imagery, and the level of continuity between Persian and Greco-Roman practice is debated.[1] The mysteries were popular in the Roman military.[2]
>Worshippers of Mithras had a complex system of seven grades of initiation and communal ritual meals. Initiates called themselves syndexioi, those "united by the handshake".[3] They met in underground temples, called mithraea (singular mithraeum), which survive in large numbers. The cult appears to have had its centre in Rome.[4]
https://en.m.wikipedia.org/wiki/Mithraism
This is also associated with 'sol invictus', a cult of sun worsippers. Lots of their amulets are interesting. Some of the images are dead ringers for the Statue of Liberty.