A Journey Through Hallowed Ground

ANTIETAM, MD - JULY 04: Sarah Spall,5, looks over a stone wall at Burnside Bridge at the Antietam battlefield July 4, 2005 where General Robert E. Lee ended his first invasion of the North in September 1862 in Antietam, Marlyand. The battle claimed more than 23,000 men killed, wounded, and missing in one single day, September 17,1862, and led to Lincoln's issuance of the Emancipation Proclamation.The battle grounds that are within the "Journey Through Hallowed Ground" Corridor, which encompasses a 175-mile-long stretch of land from Gettysburg, PA to Monticello, VA, has been recognized by national historians as the region that holds more American history than any other place in the country. The land is imminently threatened by suburban sprawl, according to the recently released study by the National Trust for Historic Preservation in its annual list of America's most endangered historic places. (Photo by Joe Raedle/Getty Images)