I've been to every U.S. major city for the most part and Baltimore is probably #1 when it comes to how bad the hoods look but you can tell how beautiful the blocks used to be.
One day, I was in West Baltimore and it really looked like a scene out of the Wire. Cats looking like Bubbles pushing shopping carts down the street. Junkies everywhere.
I got a lot of love for the city tho, it has a charm to it that most coastal cities no longer have. I want to see it regain it's prosperity without all the brothas and sistas being pushed out. Just tearing down vacants without building anything on it will make it even more depressing IMO.
Chicago has torn down a lot of buildings on the southside and it doesn't look pretty to me. They even got this project where you can buy a vacant lot if you have a plan for it but I'm not sure how successful the program has been.