Haikyo Crap (now Haikyo Info) is a website that reveals a lot of abandoned places in Japan on a dynamic map. It’s not a very well-made system, and the reasons why it has been are obscure, but it has been alive for a few years. It looks like this:
The best haikyo are generally not revealed by this map but it can be fun to use for people interested in haikyo and visited Japan. I use to dislike this website very much but realized that it kind of protects (or doesn’t know about) the best places and reveals a lot of others.
I made a little tool here: Haikyo Explorer. It analyzes the Haikyo Crap website and generates a clean database out of it.