No real myths to dispell in your comments so I'll just add some thoughts off the top of my head. I hope this post isn't TOO BIG.
Freedom/Responsibility, Liberty Bell, Statue of Liberty, Bill of Rights, Yellowstone park, Yosemite, Sequois, Old Faithful, Hoover Dam, Niagra Falls, Vermont granite, Pilgrims and Plymouth Rock, Maine lobsters, Maryland crabs, Clambakes, Louisiana crayfish, New Jersey tomatos, Georgia peaches, Philly Cheese Steak, Corndogs, cottom candy, State Fairs, Rodeos, Ten Gallon hats, Oil wells, Mesas, The Mile High City, The Rockies, Bean Town, Wisconson cheese heads, Disneyland, Las Vegas -showgirls and gambling, Painted Dessert, The Grand Canyon, saltflats, Death Valley, Wounded Knee, Idaho potatos and Iowa corn, Cattle, the praries, the Plains and Buffalo, New England fall foliage, maple sugaring time, apple picking, World Series (baseball), Super Bowl, Mississippi River Boats, Mardi Gras, Detroit Motor City, The Windy City, Appalechia, Florida Hardcore Metal, Seattle Grunge, The Blues and ALL its styles, Bluegrass, Dixieland, Eastcoast/Westcoast, Lala land (L.A.), Golden Gate Bridge, surf's up and hang ten, Chevy/Ford, Indy 500, Kentucky Derby and mint julups, Spring Break, Yale/Harvard, land of plenty, FDR, JFK, MLK, NYC,DC, All men are created equal, the American Dream.