The free museum admissions for Bank of America customers is on the first full weekend of every month.
2018 Calendar:
January 6th & 7th
February 3rd & 4th
March 3rd & 4th
April 7th & 8th
May 5th & 6th
June 2nd & 3rd
July 7th & 8th
August 4th & 5th
September 1st & 2nd
October 6th & 7th
November 3rd & 4th
December 1st & 2nd
Search eligible museums here.