Mini building blocks Castillo San Cristobal

I got this when I was in Puerto Rico as a souvenir The box was opened but never played so it’s practically new 705 pieces Ages 7 & up Little history : Castillo San Cristobal The castle was built in 1536 and is located on the Hill of San Lázaro in a strategic location, dominating approaches to the city by land or sea. It was originally known as the Castillo de San Lázaro. It was built by African slave labor under Spanish supervision during the colonial era.