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Florida

Two historic landmarks in Florida, across two eras of American history. Start with Castillo de San Marcos and Launch Complex 39 (Kennedy Space Center).

Landmarks: 2
Eras: 2

Browse the landmarks Open in the directory

Aerial view of the Castillo de San Marcos. — Pictured Castillo de San Marcos
National Park Service · Public domain · via Wikimedia Commons

— The register —

Landmarks in Florida

Spanish Colonial
Castillo de San Marcos
St. Augustine, FL
Castillo de San Marcos is the oldest masonry fort in the continental United States, a Spanish stronghold that has guarded St. Augustine, Florida, since the 17th century.
The 20th Century
Launch Complex 39 (Kennedy Space Center)
Cape Canaveral, FL
From two pads on a low spit of Florida marshland, humanity left Earth for another world.

— Archival monographs —

Historical Essays

Spanish Colonial
The Spanish Frontier: Forts, Palaces and Missions from Florida to California
Long before the English colonies became a nation, Spain had built across the southern edge of what is now the United States. Five landmarks trace that frontier from the Atlantic to the Pacific.
Old USA Editors · 2 min read · September 28, 2026