You're in the right place, Bran! Welcome!
What you describe is called "armchair treasure hunting" and it's what we here on Tweleve do best! (I think!) There are little 'hunts' all over this forum (you'll have to look around) and some active ones on the internet that some of us participate in. This is one of the nicest groups you'll ever find that participates in such things. The forum threads are organized by hunt and non-hunt topics. One of the Tweleve gurus (admins) can assist you with navigating, or you can check out the FAQ and the DESK on the menu bar above to give you a hand getting around.
Welcome, and have fun!