America Begins Here

A monument not only of stone and mortar but of human determination and endurance, the Castillo de San Marcos symbolizes the clash between cultures which ultimately resulted in our uniquely unified nation.  Still resonant with the struggles of an earlier time, these original walls provide tangible evidence of America’s grim but remarkable history.

3D Rendering of Castillo de San Marcos NM

Castillo Virtual Tour

The Virtual Tour for the Castillo de San Marcos National Monument in St. Augustine, Florida.

South West Bastion of the Castillo with cloudy sky in the background

History & Culture

Explore over 340 years of history in North America

Grass in foreground, splanish flag centered in image, chapel door and walls in background

Operating Hours

Learn more about the Castillo's hours of operation.

large group of visitors attending a cannon demonstration on Castillo's gundeck

Calendar of Events

Check out our calendar to learn more about upcoming special events.

image of castillo de san marcos with film type frame

Castillo Stories

Explore the many stories of Castillo de San Marcos with these short videos.

A group of people watch a young visitor being instructed by a ranger dressed as a 1740s soldier.

Become a Junior Ranger

Become a Junior Ranger

Last updated: March 25, 2020

Contact the Park

Mailing Address:

1 South Castillo Drive
Saint Augustine, FL 32084


(904) 829-6506

Contact Us