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The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
View of Fort Miles from Tower 7, which was one of the many fire control towers.
View of Fort Miles from Tower 7, which was one of the many fire control towers.
Restored World War II observation tower.
Restored World War II observation tower.
12-inch (305 mm) gun at Battery 519.
12-inch (305 mm) gun at Battery 519.
16-inch (406 mm) gun at Fort Miles in 2015.
16-inch (406 mm) gun at Fort Miles in 2015.
Fort Delaware on Pea Patch Island
Fort Delaware on Pea Patch Island
Historical marker for the Grand Battery (or the Association Battery), Pennsylvania's largest early fortification, originally built in 1748
Historical marker for the Grand Battery (or the Association Battery), Pennsylvania's largest early fortification, originally built in 1748
Plan of Ft. Mifflin in 1777
Plan of Ft. Mifflin in 1777
Overlay of the three versions of Fort Delaware. The largest is Delafield's never-built design; the irregular pentagon is the fort that exists today. D
Overlay of the three versions of Fort Delaware. The largest is Delafield's never-built design; the irregular pentagon is the fort that exists today. Drawn by Lt. Montgomery C. Meigs.