If you like to do some sleuthing, but you're not into actual crime scenes, you could do worse than checking out the r/whatisthisthing subreddit. It's a place where people will post pictures of things they can't identify, and you can spend many an hour scrolling along, seeing if you know what a thing is that others don't.
Honestly, I haven't had much luck identifying a lot of the things that people post, but the community in general has an excellent track record of figuring out what the heck a lot of things are. Just check out these strange discoveries!