A little bit of a Vegas in season 1 - his ex-wife is a professional blackjack player - looked like they did filming at Aria and there were some scenes filmed around Vegas. The trailer for season 2 looks like some episodes or parts were filimed in Vegas again. From an article about Bosch --"For Season 2 of Amazon Prime’s Bosch, expect tough LAPD detective Harry Bosch to come out his shell. The series will kick off with Bosch heading to Las Vegas after discovering a body in a car trunk on Mulholland Drive. Essentially, the mob did it" I love crime drama and this show is great. I haven't read any Michael Conelly books yet but they will be on my list.