America's Most Endangered Historic Places Identified

Now in its 25th year, the list, which is intended "to raise awareness about the threats facing some of the nation's greatest treasures,...has become one of the most effective tools to save our country's irreplaceable architectural, cultural, and natural heritage." Over those 25 years, the National Trust has identified 233 sites, of which only a handful have been lost thus far.

This year's list includes "the Sweet Auburn Historic District in Atlanta, the birthplace of Dr. Martin Luther King, Jr.; Joe Frazier's Gym in Philadelphia, longtime training center for the recently deceased boxing legend and U.S. Olympian; and Terminal Island in Los Angeles, a major shipbuilding center during WWI and II, and still one of the nation's busiest ports."