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 Gran Teatro de La Habana Alicia Alonso (Great Theatre of Havana Alicia Alonso) is one of the architectural jewelry of Havana. It has an incredible neo-baroque façade with the signature of the Belgian architect Paul Belau. Located in a building known as the Galician Centre of Havana, it was inaugurated in 1915 and at the beginnings it was named Tacón Theatre. Not only in its façade there are evidences of its exquisiteness, but also its indoors halls show the luxury and elegance of the time. Its stages have shown the better artistic representations of all times, with outstanding personalities during its history (Sara Bernhardth, Enrico Caruso, Alicia Alonso) The theatre has been home to the Cuban National Ballet and, the main stage of the International Ballet Festival of Havana. Its facilities include theatres, a concert hall, conference rooms, and a video screening room, as well as an art gallery, a choral centre, and several rehearsal halls for danzarias groups and dance companies.

The Museo Maqueta de La Habana Vieja (Maqueta Museum of Old Havana) (Scale Model Museum) hosts a 1:500 scale model of Old Havana, one of the most important of these models in all of Cuba, and is considered as a place of great interest, knowledge and entertainment by its inhabitants. It is continuously updated and is rather impressive due to the incredible attention to detail in its works in regards to some of the most important buildings of Old Havana. This is one of Old Havana’s must-visit museums, as it allows you to imagine what the historical center of Havana is like as a whole, and therefore being able to get a better look at it when walking its streets.

The Templete, a small neo-classical style construction, was built in the second half of the 18th Century. It is located in Plaza de Armas. This was the site where the first public mass was celebrated and also the site of the first town council of the nascent town of San Cristóbal de La Habana. The Templete resembles a Doric temple and houses three commemorative canvasses by the famous French painter Juan Bautista Vermey. One of the walls exhibits the plate that declares Old Havana a World Heritage Site.