Visiting San Francisco? Don’t forget to visit the GLBT History Museum.

Photo: Sarahbeth Maney / Special to The Chronicle

It was a daunting mission from the start: Bring visibility to a culture that, historically, had to be invisible. But it would be impossible to go through the displays at the GLBT History Museum and not see something that you didn’t see before.

“I hope they will have experienced somewhat of a change and…