This is one of my favorite shots I took in Havana. If you looked at the high res image, you follow one of those cracks at the roof all the way down to the foundation. Under no circumstances, what so ever, should people be living in this building, but here they are. And Havana is covered with buildings like this with people living in them.
A building, or wall, collapses every 3 or 4 month in Havana currently. As a matter of fact, there is an area of Havana that you are recommended on not visiting since there is a high chance of you being killed from a fall brick or stone. If you walk through there, it is suggested you walk in the middle of street. People live actually live there.
Admittedly makes for great pictures.