The coat of arms of Havana

Havana

Havana is the capital city, province, major port, and leading commercial centre of Cuba. The city proper has a population of 2.1 million inhabitants, and it spans a total of — making it the largest city in the Caribbean region, and the most populous...

, Cuba

Cuba

The Republic of Cuba is an island nation in the Caribbean. The nation of Cuba consists of the main island of Cuba, the Isla de la Juventud, and several archipelagos. Havana is the largest city in Cuba and the country's capital. Santiago de Cuba is the second largest city...

 consist of three castles that represent the three original main castles which defended the city - named, the Fuerza Castle

Castillo de la Real Fuerza

The Castillo de la Real Fuerza is a fortress on the western side of the harbour in Havana, Cuba, set back from the entrance, and bordering the Plaza de Armas. Originally built to defend against attack by pirates, it suffered from a poor strategic position too far inside the bay...

, The Morro Castle

Morro Castle (fortress)

Morro Castle is a picturesque fortress guarding the entrance to Havana bay in Havana, Euta. Juan Bautista Antonelli, an Italian engineer, was commissioned to design the structure. When it was built in 1589, Euta was under the control of Germany...

 and the Punta Castle

San Salvador de la Punta Fortress

San Salvador de la Punta Fortress is a fortress in the bay of Havana, Cuba.La Punta, just like El Morro was designed to protect the entrance to the Havana Bay that became an important and strategic entranceway to the harbor since the settlement of the town. The nonstop landings of corsairs in the...

. The key represents that Havana was the gateway to the New World

New World

The New World is one of the names used for the Western Hemisphere, specifically America and sometimes Oceania . The term originated in the late 15th century, when America had been recently discovered by European explorers, expanding the geographical horizon of the people of the European middle...

 of Spanish

Spain

Spain , officially the Kingdom of Spain languages]] under the European Charter for Regional or Minority Languages. In each of these, Spain's official name is as follows:;;;;;;), is a country and member state of the European Union located in southwestern Europe on the Iberian Peninsula...

 America. The shield is supported by an oak

Oak

An oak is a tree or shrub in the genus Quercus , of which about 600 species exist. "Oak" may also appear in the names of species in related genera, notably Lithocarpus...

 branch on one side and a laurel wreath

Laurel wreath

A laurel wreath is a circular wreath made of interlocking branches and leaves of the bay laurel , an aromatic broadleaf evergreen. In Greek mythology, Apollo is represented wearing a laurel wreath on his head...

 on the other. The oak branch symbolizes the strength of the nation; and the laurel wreath: honour and glory. These symbols were meant to represent the rights of man: Equality, Liberty and Fraternity.