Question: What masonry structure, found in Key West, is one of the largest in the world?
Answer: Fort Jefferson
Discovered in 1513 by Spanish explorer Juan Ponce de León, who named the islands Las Tortugas due to the abundant sea turtles, the park’s history is rich with tales of exploration and adventure. The main feature, Fort Jefferson, was constructed in the 19th century and remains one of the largest masonry structures in the Western Hemisphere, serving various roles throughout its history, from military fort to prison.