There’s nothing like enjoying a delicacy in its native land. The sophisticated traveler gets an extra thrill from nibbling salty little pearls of caviar in Moscow; indulging in still-wiggling, practically dripping-with-seawater sushi in Tokyo; and sipping a little bubbly amid vine-laden fields in the north of France. So, would it be a surprise for thirsty globetrotters flock to London to sample the latest trends in cutting-edge bartending?