Karate, another martial art that originated in Japan, has also become a popular sport and is practiced by millions of people around the world.
Osaka is Japan's third-largest city and a major commercial and industrial hub, with a population of over 19 million people in the greater Osaka area.
Soba, a type of thin noodle made from buckwheat flour, is a popular Japanese dish that is often served cold with dipping sauce.
