In honor of MLK day, #2 is definitely a 'must-see' and probably on everyone's minds today, but if you're not able to visit Atlanta, Georgia soon, there's 19 other must-see American historical sites on this list that might be closer for you. And even better, most of these are free to visit.
San Diego to Sonoma, California
Kentucky, Tennessee, and Virginia
10. The Alamo
San Antonio, Texas
11. Santa Fe Plaza
Santa Fe, New Mexico
Idaho, Montana, Oregon, Washington
18. Land of Lincoln
New York, New York
For more info, visit NationalGeographic.com
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