Tidy Buddhist temples rub up against modern hotels and pachinko parlors. In the center of town, the iconic Osaka Castle and its ancient moats and beautiful grounds are ringed by high-rises. Flattened during World War II, Osaka is a tangle of bridges, elevated roadways and skyscrapers, but surprisingly, Ferris wheels are also a big part of Osaka's visual signature, throbbing at night in neon color.