Downtown Las Vegas. Trendy or trashy and usually smoky either way. Commonwealth is a new bar that reminds me a bit oft the East Coast with its pull away from Las Vegas glitz and downtown nostalgia. The group I was with were happy with their various drink selections that contained unique ingredients, distinct names and extensive choices. It is a unique bar downtown in that it has an upstairs bar and terrace and allows the downstairs to have cleaner air since there is a smoking alternative.