Several times I've glimpsed this wall in Old Town Chinatown when I've been on the 17 bus, headed home after work. Needless to say, curiosity bit me pretty hard.
Saturday in the Buick, stopped at a traffic signal, I saw it again. "Oh, boy! I've been wanting to take this photo. I wonder why these two limos are here?" Click. After taking the photo, I continued around the corner, revealing the front of the building and the answer to my question.