Do you have a Bank of America credit card? Then you can get completely free admission to more than 150 museums all across the United States.
On the first full weekend of each month, Bank of America offers free admission to museums all across the United States, as an exclusive perk to Bank of America (or even Merrill Lynch) credit or debit card holders. That means Saturday April 4 and Sunday April 5, you can get in completely for free.
You can learn more details about the program here. Keep in mind, with Sunday being Easter, so any of the museums which may be open on Sunday, may be closed. This is a great perk, with participating museums in more than 30 states. You can locate a museum near you and learn more details.