A closer look

Welcome to the ultimate VIP rooms of geopolitical paranoia. Leftover from the Cold War, Russia still operates 'ZATO' (closed administrative-territorial formations) designed to hide military bases, nuclear facilities, and classified research. Not only are foreign tourists banned, but even regular Russian citizens need special security clearances to visit their own relatives inside. The TripAdvisor reviews are notably sparse, mostly because posting one might get you accidentally defenestrated.