Vesper Bar sits in the Cosmopolitan's casino level and takes its name from Ian Fleming's gin-vodka-Lillet Blanc martini from Casino Royale. The theme is not played for kitsch — the bar is dark, sleek, and low-ceilinged, with a serious cocktail programme that includes a rotating roster of classic variations alongside the house specialities.
The Vesper itself is made properly with Kina Lillet substitute; the other cocktails draw from the classic canon and are well-executed. The bar is relatively compact and fills up on weekend evenings, but unlike many Strip bars there is almost always a way to get a drink at the counter. One of the better cocktail bars on the Strip without being the most expensive.