iOpened in 2011 by the GLBT Historical Society, this storefront museum on 18th Street in the Castro was the first standalone museum of LGBTQ history and culture in the United States. Its main gallery exhibition, Queer Past Becomes Present, draws on the society's archives to tell more than a century of queer life in San Francisco, while a front gallery hosts rotating shows. It also displays the only known surviving segment of Gilbert Baker's original 1978 rainbow flags. A larger permanent home is planned at 2280 Market Street, but no move date has been set and the museum remains open at 4127 18th Street.

The only known surviving segment of Gilbert Baker's two original rainbow flags, hand-dyed and first raised at UN Plaza on 25 June 1978, on view since 2021.

The main gallery's long-term show: photos, documents and artifacts from the society's archives telling over a century of everyday queer life in San Francisco.
4127 18th Street, San Francisco, CA 94114
Nearest station: Castro (Muni Metro K, L, M, S) and Muni bus 24, 33, 35 and 37 (Castro / 18th Street)
Show on map| Mon | Closed |
| Tue | 11:00–17:00 |
| Wed | 11:00–17:00 |
| Thu | 11:00–17:00 |
| Fri | 11:00–17:00 |
| SatToday | 11:00–17:00 |
| Sun | 11:00–17:00 |
From $10
$6 for youth 13-17, seniors 65+, students, teachers, military and visitors with disabilities; free for children 12 and under, members, NARM/ROAM and SNAP EBT cardholders, and for everyone on the first Wednesday of each month.
The audioguide is free for blind, low-vision and visually impaired visitors.
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