The first weekend of every month, Bank of America customers get into many museums nationwide for free. As of this posting (July 31st, 2011) the following Charlotte museums are included. If you are reading this post at a later time make sure to check the link yourself. Also, call individual museums for their hours.
Mint Museum Uptown
Mint Museum Randolph
Bechtler Museum of Modern Art
Levine Musem of the New South
NASCAR Hall of Fame
Harvey B. Gantt Center for African-American Arts + Culture
Bring a Bank of America credit or debit card for admission.