This combination of Sept. 11, 2005 and July 29, 2015 aerial photos show the Lower Ninth Ward of New Orleans flooded by Hurricane Katrina and the same area a decade later. Before Katrina, the Lower Ninth Ward was a working-class and predominantly African-American neighborhood just outside the city's historic center. (AP Photo/David J. Phillip, Gerald Herbert)
Hurricane Katrina was the costliest and one of the deadliest hurricanes in American history. Check out how some of the worst affected areas fare one decade after.