Havana is not short of things to see and do to keep the traveler occupied for a number of days.
Havana Vieja has most of the historical spots of interest, featuring a number of restored colonial plazas, such as Plaza Vieja, Plaza de la Catedral, Plaza de Armas and the Plaza de San Francisco. There are also a number of important and interesting museums, including the Museo de la Revolucion, which recounts the days since the time before the Bautista government, through to the early 1990s.
Havana Centro is home to a good long stretch of the Malecon, which gives you a good feel for the heady Havana of the 1950s before the revolution. There are also cigar and rum factories to be explored and a number of churches, including Convento y Iglesia del Carmen. There is the Museo de Ferrocarril (railway museum), among others, and the Centro area is also home to Havanaâ€™s answer to Chinatown.
The Vedado and Plaza de la Revolucion area offer pretty parks and plazas for your entertainment, including the grandiose Plaza de la Revolucion itself. From here, the Castros deliver their famous speeches, addressing the Cuban people during important events.
Further out from the center of town, you can find Nuevo Vedado and its zoo and the world famous Tropicana, located in the Playa section of town. These areas are also not short of plazas, parks and museums for you to take in.
One way to take in a number of sights more quickly than you might by wandering around is to take a city tour. These are offered for CUC19 and can be booked through Infotur.