San Francisco, Italy
Battery Chamberlin, built near Baker Beach in 1904, was constructed as part of a modernization effort to accommodate the lighter, stronger, more powerful coastal defense weapons developed in the 1880s. Today Battery Chamberlin holds the last 6-inch "disappearing gun" of its type on the West Coast.
Listen to the audio guide for Battery Chamberlin Free on WIP — starts by itself when you arrive, even with the screen off