
I used to belong to a site called “Ancient Sites” or something like that.
It featured 3d reconstructions of locations like ancient Rome, Macchu Pichu, Memphis, etc that you could wander around. I used it when I was reading Collen McCulloughs books on Rome so I could ‘be’ at the locations and ‘see” the buildings. Very cool.
You could also take a name for an avatar and interact with other members of the site. I think I was a Roman Senator named Antoninus or something, but I didn’t really get into that side of it too much.
Don’t know if it is still in operation.