Habana Vieja or Historic Havana is a pretty historic district that is relatively well-restored and is also the centre of all things touristy. It is about 20 minutes walk (but a strong contrast) from the crumbling Old Havana which we are in.
In the real Old Havana, many of its residents crammed into three-storey apartments … several families to a building. It becomes obvious when one notices the number of doorbells attached to one main entrance to a building.