If you’re into Bob Fosse musical numbers (think Chicago and Sweet Charity ) , make a beeline to Troyka for an extraordinarily camp floor show by sequin-spangled Russian dancers who twirl, dip, and kick higher than a young Shirley Maclaine. In between, a three-piece house band plays mournful Russian ballads. Stunning. Scope the crowd for oligarchs ignoring the show. Come for dinner and make a night of it.