
America’s shores are dotted with forgotten coastal fortresses that once stood as the nation’s first line of defense. From the Revolutionary War to the Cold War, these stone sentinels have witnessed centuries of history. Listed below are 10 such remarkable strongholds, their weathered walls and silent gun emplacements, waiting to tell their tales.
Fort Monroe, Virginia

Known as the “Gibraltar of the Chesapeake,” Fort Monroe boasts 400 years of history. A Union stronghold during the Civil War, it earned the moniker “Freedom’s Fortress” by sheltering escaped slaves. Today, its stone walls and moat continue to captivate with tales of military innovation and social change.
Fort Stevens, Oregon

At the mouth of the Columbia River, Fort Stevens stood guard for over 80 years. It holds the distinction of being the only continental US military installation to come under enemy fire since the War of 1812. In June 1942, a Japanese submarine shelled the fort, though causing no significant damage.
Fort Pickens, Florida

Fort Pickens has been Pensacola Bay’s resilient guardian since 1834. It held firm for the Union throughout the Civil War, enduring a 20-month siege. Later, it housed Apache leader Geronimo during his imprisonment. Its well-preserved structures offer visitors a tangible connection to America’s coastal defense legacy.
Fort Gorges, Maine

This granite fortress, obsolete before completion due to naval advancements, never saw combat. Now a silent sentinel, it’s accessible only by boat, offering adventurous visitors a unique journey into coastal defense history. Floating in Portland Harbor, Fort Gorges mirrors 19th-century military architecture.
Fort Worden, Washington

Fort Worden once formed the “Triangle of Fire” with two other forts, guarding the entrance to Seattle. Perched above Puget Sound, it was built in 1902. It is now a state park where history enthusiasts can explore gun emplacements and film fans recognize “An Officer and a Gentleman” locations.