Stonewall National Museum and Archives (SNMA) is a nonprofit, tax-exempt 501(c)(3) organization that promotes understanding through preserving and sharing the proud culture of lesbian, gay, bisexual and transgender people and their significant role in society. SNMA is one of the only museums in the United States dedicated solely to LGBT history, civil rights, art and culture. The museum features three gallery spaces with changing monthly and bi-monthly exhibits, and includes a permanent timeline of American LGBT history.