This square dates back to the first half of the 17th century. Its location, just a few metres from the bay, led to it becoming an important trading square over the years. It is said that around the year 1600 the first fountain of the city could be seen at this square. In 1836 it was replaced by a beautiful fountain made of white Carrara marble by Giuseppe Gaggini, under the good auspices of the Villanueva Count. This fountain is called Fuente de los Leones (Lions Fountain). On its paved area stand two noteworthy buildings: the Monastery and Basilica of San Francisco de Asís, which today houses the Museum of Religious Art and a concert hall. It is also where the Lonja del Comercio (Chamber of Commerce) is located, inspired by Spanish Renaissance architecture and topped by a dome on which a sculpture of the god Mercury stands. Among the houses built around the plaza, the house of the Arostegui family, residence of the Captain Generals until the completion of the City Hall at the end of the 18th century, was erected.

The Museo Casa Natal de José Martí (Birthplace Museum) is the house in which José Martí was born, a 19th century politician, intellectual and national hero of the Republic of Cuba. This humble two-floor house was converted into a museum in 1925 and declared a National Monument in 1949. It exhibits personal objects of José Martí, whose spirit is felt in every corner of the restored house. It was built at the beginning of the 19th century, rather close to the city walls, and has typical features of many houses in the area: a tiled roof and mortar walls.  The house was restored and its collection enriched in a community process in 1959. It is interesting to know that this museum contains the only known Oil Portrait of José Martí.

The Museo del Tabaco (Tobacco Museum) is located within an 18th century building that belonged to the Bartolomé Luque family, in Calle Mercaderes Street, Old Havana. This museum is dedicated to the preservation and display of collections related to the plantations, production and commercialization of Cuban tobacco. It exhibits a large collection of pipes, leaves and other related items, as well as a collection of lithographic stones and machines of important cigar companies. The museum has a small shop where you’ll be able to get different Havana cigars and items for smokers.

The Museo de Bomberos (Firefighters Museum) is located in the same place where more than 20 firemen died during a great fire. The purpose of this museum is to promote fire prevention throughout the population and to recognize the great work firemen do. The museum contains a bronze sculpture of a fireman, several water tanks, firefighter uniforms, and other related items. It also has an auditorium and offers guided tours and fire prevention courses for children and teenagers.