A part of the Fort Sumter National Monument, this is the site where Colonel William Moultrie's South Carolinians repelled a British assault in one of the first patriot victories of the Revolutionary War. Completed in 1809, the fort is the third fortress on this site on Sullivan's Island, 10 miles southeast of Charleston. Set across the street, the companion museum is an unsung hero. Although much is made of Fort Sumter, this smaller historical site is creatively designed, with figurines in various uniforms that make military history come alive. A 20-minute educational film that spans several major wars tells the colorful history of the fort. There's also an exhibit focusing on the slave trade and Sullivan's Island's role in it. Plan to spend the day bicycling through Sullivan's Island, where you'll find a cluster of century-old beach houses.