Bank of America (abbreviated as BoA or BofA) is an American multinational banking and financial services corporation headquartered in Charlotte, North Carolina.

It is the second biggest bank holding company in the United States by assets.

As you are asking about the San Francisco Museums participation in Bank of America Free Museum Weekend

Bank of America Free Museum Weekend

Holders of Bank of America or Merrill Lynch credit cards and debit cards get free admission to six Bay Area museums and two Sacramento museums for the first weekend every month.

Here is Participating Museums list of

San Francisco

Contemporary Jewish Museum
de Young Museum
Legion of Honor

Oakland
Chabot Space & Science Center

San Jose
San Jose Museum of Art
The Tech Museum of Innovation

Mountain View
Computer History Museum

Sacramento
Crocker Art Museum
The California Museum

Bank of America Customer Service Number 877-231-9327