More than 65 kittehs live underneath St. Petersburg's Hermitage Museum. Their mission? To protect the museum's precious artwork from rodents with an indiscriminate taste for all things chewable. They are, of course, fed and cared for by a dedicated staff, and other job perks include free admission to one of the world's most prestigious museums. The cats employed today are the latest in a line of feline workers that stretches back more than 200 years. Think of that the next time you look over at your lazy fluffball, asleep in a sunbeam.