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An elementary school at the center of a civil rights battle, a hospital ravaged by Hurricane Katrina and a hangar that once housed U.S. Navy dirigibles are on this year's National Trust for Historic Preservation's endangered list.

The 11 sites represent the country's architectural, cultural and natural heritage, and "reflect extraordinary periods of American history," National Trust Director Richard Moe said.

The sites were chosen from about 70 nominees by the member-supported nonprofit group. Founded in 1949, it aims to protect significant buildings and locales, now protected under the 1966 Historic Preservation Act. Read full article »

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