This is a result of a fun game at the Postcrossing Forums called "UYI, Use Your Imagination." You got to choose a series of any three letters, and the next person had to send you a postcard filling those initials. The person before me left "G. U. G." and I sent her a card of the Denver Capitol Building (ie Gray Under Gold, for the granite walls and gold dome.)

Then I left the letters R. A. C. for the next person and this is what I got. She sent "Retro And Current." Pretty clever, huh? It's San Francisco's Chinatown.