Lying 10 miles southwest of downtown Savannah on U.S. 17, on the banks of the Ogeechee River, Fort McAllister is a restored Confederate earthwork fortification. Constructed in 1861–62, it withstood nearly 2 years of Union naval bombardments before it finally fell on December 13, 1864, in a bayonet charge that ended General Sherman’s infamous March to the Sea. There’s a visitor center with an excellent Civil War Museum and 13-minute audiovisual presentation, and also walking trails and campsites.