As the symbolic heart of Russia, Moscow, which celebrated its 867th anniversary in 2014, has enjoyed a renaissance as one of the world's great cities. The capital's streets now buzz 24 hours a day, and joint ventures between east and west have already opened plush new hotels, internationally stocked shops, and well over 1,000 eating establishments. Her sister-city, St. Petersburg, host of Russia's Golden Age and cradle of revolution, and surely Russia's...