Vegas
To hell with the chicks and the Hummer limos, I'm only here for the desert. We had this job with MGM. Something about a new shopping mall. Whatever. We ate good, lost the job, and got in a couple of cool road trips.
Vegas, you have to see it to believe it. The same could be said for NYC, or Dubai, or Calcutta. Each bears witness to a different facet of us humans. Visitors from other planets sent down to visit one and not the others would come away with very different ideas. The one visiting Vegas might conclude that the humans don't believe in anything. Life = consumption + entertainment.
On the strip, well, you know.
Off the Strip, gambling addicts take 29$ rooms at rundown motels for the week and sit at the slots in the lobby all day. Going in or out of any convenience store involves running a gauntlet of slots manned by welfare cases.
Suburbia spreads across the desert like a disease. People are flocking here. There is nothing here. Nothing. There was the desert, before. Now it's gone. Why are they coming?