(Editor's note: This story was updated with a photo of L.A. City Hall glowing in lavender light on the evening of June 7, 2012, in celebration of a Pride event.)

LOS ANGELES -- City Hall will be glowing in lavender light tonight in celebration of LGBTQ Heritage Month.

The Office of Mayor Antonio Villaraigosa and ONE National Gay & Lesbian Archives will observe LGBTQ Heritage Month with the opening of “Defiant Spaces,” an expansive timeline exhibition about the history of LGBTQ organizations in the L.A. area.