After spending a week in Las Vegas, I'm pretty sure that this city has the highest concentration of fine dining restaurants in the US. No matter where you are on the strip, there is likely a highly rated (or Michelin starred) restaurant right around the corner.
I ate mostly in the Aria hotel. After a long day of walking, I usually head back to my room to freshen up before dinner. By that time, the last thing I want to do is go out and walk some...