Sarah Michelle Gellar Reflects on 'Buffy' 12 Years Later

See the nostalgic pictures she posted from the set.

— -- "Buffy the Vampire Slayer" ended it's illustrious run 12 years ago this past Wednesday.

"12 years ago, I said goodbye to a friend. It was an incredible journey that, I am so incredibly proud of," she wrote next to a collage of classic pics.

She added, "Thank you all for joining me, and continuing to tell her story #BuffyTheVampireSlayer #BTVS."