National Trust for Historic Preservation lists most endangered places across the US - in pictures

Ellis Island hospital complex: the boarded-up ward for contagious diseases opened in 1909 as part of the island's main hospital complex. The medical buildings on the south side of the island have been left unrestored and are not open to the public Photograph: Bebeto Matthews/AP

Joe Frazier's gym in Philadelphia: Joe Frazier, the former heavyweight champion of the world, poses for a portrait at his boxing gym in 2009. Today, the converted warehouse where Smokin’ Joe perfected his punch is home to a discount furniture store and two floors of vacant space Photograph: Al Bello/Getty Images

Courthouses in Texas: scores of historic courthouses – including some of the oldest and most architecturally distinguished, like this one in Bandera, Texas – are in disrepair due to inadequate funding and maintenance Photograph: Amar and Isabelle Guillen - Guillen Photography/Alamy

Malcom X's Boston home: built in 1874, this modest structure is the last known surviving boyhood home of Malcolm X. Rodnell Collins, nephew of Malcolm X, and Kathy Kottaridis, executive director of Historic Boston, Inc are among those hoping to see it rehabilitated Photograph: Barry Chin/The Boston Globe via Getty Images

Bridges of Yosemite Valley: the national park service is preparing a comprehensive management plan for the Merced River, which flows through the heart of Yosemite national park in California. Three historic rustic-style bridges built in 1928 and 1932 are being considered for removal and face an uncertain future Photograph: Alamy Creativity/Alamy

Sweet Auburn historic district in Atlanta: designated a national historic landmark in 1976, Sweet Auburn is a prime example of the flourishing segregated neighborhoods founded by African Americans during the Jim Crow era in the South Photograph: Nikreates/Alamy

Terminal Island in Los Angeles: in recent years, the port of Los Angeles has neglected historic buildings like this compressor building at Terminal Island – a pattern that plagues industrial sites around the country. A plan introduced in 2011 calls for the demolition of more structures and fails to endorse the idea of adaptive reuse Photograph: LHB Photo/Alamy

The village of Zoar, Ohio: the Joseph Bimelek Log Haus, built in 1817, stands on the settlement of Zoar. The historic village is protected from flooding by a levee built in the 1930s. Record floods in 2005, however, raised concern about the levee’s integrity, and the Army Corps of Engineers is reviewing it Photograph: Lee Snider/Corbis

The local post office in Markham, Virginia. Last year, the US postal service identified nearly 4,400 post offices – large and small – that it plans to study for closure Photograph: J. Scott Applewhite/AP

Theodore Roosevelt’s Elkhorn ranch: the presidential historic site, which lies on both sides of the Little Missouri River, in North Dakota, is threatened by a proposed new road that would introduce a visual disruption, as well as traffic, noise and dust Photograph: AP

Princeton battlefield: a portion of the New Jersey battle site faces significant threats, including a 15-unit housing development for the faculty of the Institute for Advanced Study. The battlefield is the site of one of George Washington's most important victories over the British Photograph: Daniel Hulshizer/AP