Castillo de la Real Fuerza Castle in Old Havana, Cuba, one of Cuba’s most ancient castles. It is a great sample of military architecture during the Spain's rule over the Caribbean. It is located in the Plaza de Armas Square in Old Havana facing the sea. The Castle, as well as the rest of the old city’s fortifications, has been declared World Heritage Site by UNESCO.
The Castillo de la Real Fuerza Castle is the oldest fortress still preserved in all the Americas. It was built between 1558 and 1577, in the same location where a fort was destroyed by French pirates in 1555. The west tower is crowned by the copy of a well-known bronze weathervane called La Giraldilla. The original was made in Havana in 1630 and is quite similar to the Giralda of Seville.
https://www.tripcuba.org/castillo-de-la-real-fuerza