I was surprised by the prevalence of smoking in Vegas; it's one of the only places I've been in recent memory that allowed and encouraged smoking everywhere — near as I could tell, there were no designated smoking or non-smoking areas.
Spotted this woman while we were walking along the Strip toward CVS.
And this one after walking outside of The Venetian after dinner at Bouchon.
There were a variety of street musicians and performers playing near pedestrian walkways, and many of them were smoking as well.
This was perhaps the most curious case. I'll forgo any attempts to interpret what's going on here.