Centralia was a mining town that ended up having an underground mine fire. The town was forced by the government to leave after a kid fell into a sink hole and died. The highway is the main attraction as it moved and cracked from the fire burning underneath. It is now covered in graffiti and based on the amount of people there when we were there, a moderate tourist attraction. More info with the links provided. It's the town Silent Hill was based on. We also found an abandoned and vandalized mobile home close to the old town church. That was actually my first exploration and what sparked my love for this hobby.
***Update by fiso, Sept 2015***
For anyone who enjoys this hobby, there is a lot more to see than one would believe at first blush. The beautiful church, wonderful yet private property, the cemetery and co-located coal miner museum, the sidewalks, stairs to nowhere, fire hydrants, the municipal building, the remaining residents (three families), the neighbouring communities (visit Ashland, please!) and their willingness to chat with "respectful" visitors, the kids and their rice burners who use the abandoned roads as a track (and who, quite properly, step aside when an SRT8 encroaches) and everything else. I was going to save this for my "200th" and was profoundly disappointed to see the effort I am "adding to". The highway, graffiti'd yes, was a great chance to talk to people about why they were there. The heaving is extraordinary. Bucket list...despite the fact it is all gone....it is all still there.