First, I got from the library, and it was The Chinaman by Friedrich Glauser, another of these "Swiss" mysteries. Somehow, though the mystery is intricate enough, it just doesn't make me feel like I was in Switzerland, for all that he tries to set the scene.
Second was Cult Vegas: The Weirdest! The Wildest! The Swingin'est Town on Earth! by Mike Weatherford. It gives some of the history of the Strip, and to a lesser extent the downtown district, mostly through tales of the entertainers: comedians, singers and other show folk. There's some items of mild interest, especially of the early history, but only a few. I'm happy that I got this at discount, but I don't plan to keep the book.