Other than some info about the Carribean in the Sixth World Almanac that part of the world hasn't got much attention. Havana gets a long paragraph, thats about it. Certainly not anything as detailed as Seattle or Denver. The almanac basically mentions three areas for Havana, "Old Havana" which is described as a heavily fortified political district, Centro Habana, which is a shopping district, and Barrio Chino which is a gang controlled slum. Havana in general is one of the better off cities of the Carribean, and is described as a major tourist destination.
After that, you are pretty much on your own.