(Charles Platt is a guest blogger)
While driving through Dallas, I stopped to visit the museum in the old Texas Book Depository building from which Lee Harvey Oswald took a shot (or two, or three) at John F. Kennedy. Two X marks have been etched into the asphalt, marking the locations where the president was hit. I was fascinated to see tourists running out into the road to have their pictures taken while standing on an X.
The Book Depository looks especially good to me in infra-red
The ruthlessly modern, official Kennedy memorial, by architect Philip Johnson, is located just a couple of blocks away, but relatively few people seem to go there, perhaps because they are more excited by the guilty thrill of an assassination site which shamelessly admits what it is.
Another possibility is that Johnson's memorial is shunned because it looks like a giant urinal. (Just my opinion of course. YMMV.)