It's weird enough that there's an abandoned farm in the middle of Redwood National and State Parks-- but that's not even the half of it. That innocent looking barn? It's a World War II-era early warning radar station, complete with anti-aircraft artillery. And that quaint, charming little farmhouse? It's actually a secret power station. Even the outhouse was a part of the clandestine complex, built specifically by the army to disguise the radar station's true purpose: guarding the Pacific coast from attacks.
Of course we all know about the Japanese attack on Pearl Harbor, but that was far from the only WWII attack on American soil. Attu, in the Aleutian Islands, was the site of the only actual battle in America, and Japanese submarines were shelling strategic points up and down the coast in 1942, from an oil refinery in Santa Barbara to Canada's Esteven Point and Fort Stevens in Washington State. The final straw came when a Japanese submarine-launched plane showered the forests of Oregon with bombs (which is a fascinating story all on its own). The Radar Station B-71 (code name: "Trinidad") was built as one of 72 proposed stations in a network stretching from Canada down to the boarder of Mexico.
65 of the proposed stations were actually built, and this one is unique not only because of its unusual camoflague (it was built to appear as an innocent farm specifically for the Army) but also because it actually has been preserved. The men working the station, which required a crew of 35 and was operating 24 hours a day, lived in nearby Klamath. As WWII drew to a close, the radar station was converted to be used for air-sea rescue radar and remained in operation a few more years before finally being abandoned. It was privately owned before being purchased as part of Redwood National Park.
You can't really get inside the buildings, but it'd be hard to believe that they were ever anything but a farmhouse-- except for the historical marker telling the the real story nearby. Even so, it's just as remote and unassuming today as it was back then, and even though you can't really spot enemy planes from it anymore, you can at least take in the stunning views!