Ninjas lived in Japan hundreds of years ago, and Iga City is thought to be the birthplace of the ninja. The city is home to Iga Ueno Castle, which boasts one of the highest stone walls in Japan, and the Ninja Museum of Igaryu, where you can learn about the history of ninjas. Or visit the industrial city of Yokkaichi and see the spectacular night view of its illuminated factories. In Mie Prefecture, you can experience both ancient and modern culture.