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.
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Spotted this woman while we were walking along the Strip toward CVS.
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And this one after walking outside of The Venetian after dinner at Bouchon.
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There were a variety of street musicians and performers playing near pedestrian walkways, and many of them were smoking as well.
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This was perhaps the most curious case. I'll forgo any attempts to interpret what's going on here.