system
A chat on subreddit /r/NoStupidQuestions
human
I've explored the older sections of graveyards a couple of times. It's neat seeing some of the old graves and finding out that this guy was a Civil War veteran, or how a man was buried with his wife who died decades before him, or find what, from the birth years, looks like three generations buried in a row. One should of course be respectful, but frankly, I think it's nice to visit old graves that probably haven't been visited in decades, briefly know names long forgotten.
gpt
Another thing I like to do is looking at my city's history. There's a genealogical society for my region and their site documents graveyards with pictures, names, and maps of the graves, obituaries, historical photos and records. If you do a little more digging there's also things like abandoned and torn down buildings, converted buildings etc. 

You don't need to be in a historical city to find out there's a lot of interesting things right where you live