Castillo de San Marcos is a historic fortress located in St. Augustine, Florida. Built by the Spanish in the late 17th century, it is the oldest masonry fort in the continental United States. Constructed from coquina, a local shell stone, the fort was designed to protect the city from invasions. Its sturdy walls, bastions, and unique architecture reflect the military history of the area. Today, it serves as a national monument, attracting visitors with its rich history and stunning views of the surrounding waterfront.

The National Shrine of Our Lady of La Leche at Mission Nombre de Dios in St. Augustine, Florida, is a historic Catholic site dedicated to the Virgin Mary as the Nourisher of Life. Established in 1600, it is considered the oldest shrine in the United States. The site features a beautiful chapel and serene grounds, where visitors can explore the rich history of Spanish missions in the region. Pilgrims and tourists alike visit for reflection, prayer, and to celebrate the deep cultural and spiritual heritage of St. Augustine.