(CNN) -- The National Trust for Historic Preservation added 11 sites to its most-endangered list Wednesday, including one of the last remaining Negro League ball parks, a Civil War battlefield, a prehistoric cultural site in Guam and America's state parks and state-owned historic sites.

The annual list highlights important examples of the nation's architectural, cultural and natural heritage that are at risk of destruction or irreparable damage, the National Trust said in a release.

"While the 23rd annual list of America's 11 Most Endangered Historic Places is, by definition, about historic places, it's also about neighborhoods and communities that contribute to the quality of life in America and the people who work hard to preserve them," said National Trust President Richard Moe.

Among the 11 sites are:

-- Hinchliffe Stadium in Paterson, New Jersey, one of the last remaining Negro League ball parks. Legends such as Josh Gibson, Buck Leonard and Dizzy Dean played at the stadium, which now stands vacant and dilapidated.

-- America's state parks and state-owned historic sites, which face uncertain futures and closures due to state budget shortfalls.

-- Wilderness Battlefield in Orange and Spotsylvania counties, Virginia, which was the site of one of the most important battles of the Civil War and the first meeting of legendary generals Robert E. Lee and Ulysses S. Grant. A big-box retailer wants to build on the site, the National Trust said.

-- A prehistoric cultural site revered by the Chamorro people of Guam, the westernmost U.S. territory in the Pacific Ocean. The site is threatened by a planned massive military buildup that will put irreplaceable ancient artifacts at risk, the National Trust said.

Other sites include: Black Mountain in Harlan County, Kentucky.; the Industrial Arts Building in Lincoln, Nebraska; the 1844 adobe Juana Briones House in Palo Alto, California; the 37.5-mile Merritt Parkway in Fairfield County, Connecticut; the Metropolitan A.M.E. Church, Washington, where funerals were held for abolitionist Frederick Douglass in 1895 and civil rights icon Rosa Parks a century later; the 2,500-acre Saugatuck Dunes in Michigan, home to several endangered species; and the Art Deco 16-story Threefoot Building in Meridian, Mississippi.