
Constructed as part of the National Park Service’s Mission 66 program to expand visitor services leading up to their fiftieth anniversary in 1966, the Visitor Center stands outside the fort in order to preserve the site as a “period exhibit.” The modernist design of this cylindrical brick building complements the simplicity of the historic fortifications and is positioned precisely so that its exit positions the visitor on axis with the center line of the fort. The architects drew inspiration from Eero Saarinen’s design for the MIT Chapel (1955) for its circular plan, base arches, rusticated brick, and surrounding gravel moat. A functional sunscreen of aluminum panels positioned vertically on brackets is on the southwest side of the building.