Do you have a Bank of America account? You can get Free Museum Admission for Bank of America Customers just by using your BoA bank card. The deal is only good for select weekends. Also, the deal extends to different museums. Check out the calendar of free admission dates, as well as list of eligible museums. This info is only at the Museums on Us website.
The next free dates are this weekend, August 2nd and 3rd, 2014!