The 197-room Kempinski occupies the best spot on a picturesque canal, overlooking the Winter Palace and its sprawling Palace Square. The elegant 1853 facade is intactguests still enter through an old carriagewayand interiors gleam with old-world opulence, from the intricately patterned marble floor in the central atrium to the gilt mantle clocks, portraits of monarchs, and carved period furniture. Evoking the city's port history, curtains and carpets sport nautical symbols, and the glass-covered rooftop Belle Vue Brasserie, one of the hotel's two French restaurants, resembles the lounge on an ocean liner. Diners there have a perfect vantage point for viewing St. Petersburg's best-known landmarks, including the spires of the Peter and Paul Fortress and the Admiralty, and the gold dome of St. Isaac's Cathedral.
When to go: June and July, for the impossibly long daylight of the White Nights; January, for the dazzling snow of a real Russian winter.
Which room to book: One of the five Moika River Executive Suites, which have views of the Hermitage and the Moika River (doubles, $213–$369).