Founded over 1,400 years ago as the first -- and therefore oldest -- officially established temple in Japan, Shitennoji Temple is the spiritual heart of Osaka. It was constructed in 593 by Prince Shotoku, who is credited with introducing Buddhism to Japan. However, like most wooden structures in Japan, its buildings have been destroyed repeatedly through the centuries by fire and war, including the 1615 Tokugawa raid on Osaka Castle and World War II. And through the centuries, the buildings have been faithfully reconstructed exactly as they were in the 6th century, with the Main Gate, the five-story Buddhist Pagoda, the Main Golden Hall, and the Lecture Hall all on a north-south axis. Japanese flock to Shitennoji to pay respects to Prince Shotoku, who remains a revered, popular figure even today. There's also a turtle sanctuary. But the best thing to do here is wander the temple's newly restored Japanese Landscape Garden, first laid out during the Tokugawa regime and a lovely oasis with its manicured bushes, meandering streams, and waterfall.