I experienced one literally minutes ago after doing a guided tour at Pompeii. I want an AR tour guide. It should know where I am and give me the relevant comme

I experienced one literally minutes ago after doing a guided tour at Pompeii. I want an AR tour guide. It should know where I am and give me the relevant commentary to the ruins I am at. Following me, not vice versa. Ideally if there are several in my group then I want the commentaries synced. When I walk to an intersection, I want to see what's on offer, with preview, if I turn left vs right. I want to look at the frescos and crumbling walls and see virtual reconstructions. Extra points for knowledgeable citizens from the past walking up and interacting. Obviously all in the user's own language.