Update: The correct answer to this was Moscow, where post-election protests drew thousands. A security guard detained an activist from of Ukraine's protest group Femen, just outside the Christ the Saviour cathedral.

Today, we present you with a photo of a security guard detaining a half-dressed activist with flowers in her hair, just outside a cathedral, as photographers look on. Tell us where this photo is from in the comments below.

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A security guard detains an activist outside a cathedral Friday, Dec. 9, 2011. (Ivan Sekretarev/AP)

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