St Augustine Museum, St Augustine, Florida, USA

The museum has some colonial pieces and lots of information for the city.

Anastasia State Park - St Augustine Beach, Florida, USA

The beach had lots of white sand and then mutated into shells. This is why the Castillo de San Marco and most building were made of "coquina" material.

Fort Matanzas - Crescent Beach, Florida, USA

The fort is the back alley of the Matanzas river. Served as the back door fortification while Castillo de San Marco was the front end of the defenses.