Detroit is the world's biggest ghost city. I wouldn't want to live in Detroit per say, but I love the idea of taking an abandoned house and remodeling it to be inhabited again. I love the stone one 8 pictures down. Just amazing architecture. So sad.
Pripyat, Ukraine, a city of nearly was totally abandoned after the nearby Chernobyl nuclear disaster in Due to radiation, it has been left untouched ever since the incident. Nature now rules the city in what resembles an apocalyptic movie.