The NPR (National Public Radio) headquarters at 635 Massachusetts Avenue, NW in Washington, D.C.
An article by paidcontent.org was reprinted on various sites including the Washington Post, Yahoo! (US, Canada, India), and others. Sadly, my photo is only visible in the paidcontent article, but I find it funny the attribution is still mentioned on many of the sites listed above. (see: here for an example)