I am looking for a game that I played at a friend's house. I want to say it was around the time of Indiana Jones and the Infernal Machine (hence the timeframe in the post). I don't recall too much about it beyond that there were some (potentially multiple) three pointed symbols (like... my brain is saying they were like more in depth Triquetras?

The symbol may have been different from level to level) that you had to find and touch in order to be teleported to the next area. You may have needed to collect some orbs (like, one red, one green, and one blue?) to actually interact with the symbol. As per the title, I believe the game's name started with an M, or there were references to a group that started with an M involved with putting the symbols in places. I seem to recall one level taking place in a very... Venice like aesthetic? but I don't recall if there were actually people or if it was just a lot of jumping around on buildings. Whatever the M word is, I also want to say that it was three sylables.

I assume the game was rated somewhere between E and T, but I don't know for certain. It is also entirely plausible that it was from an earlier time frame, and just happened to be owned by my similarly aged friend at around that time.