While we were in Florida, we went to St. Augustine, FL for a day.  Our 2 youngest children had never seen the Atlantic Ocean or any of the historical sites in St. Augustine.  One of the places that we wanted to take the kids was to the Castillo de San Marcos.   The Castillo de San Marco construction was started in 1672 making it one of the oldest standing structures in America.  The structure was completed in 1756.  The Castillo was built by the Spanish to protect their Empire.  During  the time the Castillo was being built, it changed flags 6 different times. The Castillo was also built using “Coquina”, a type of limestone made from shells and crushed shells.

This is an awesome place for a field trip.  I remember visiting it when I was in the 4th grade and now my children have also been able to visit it.  They have guided tours as well as short movies to help explain the history of the castle.  It is definitely a place we will go back to visit again.