Takoyaki, a dish made with small balls of batter filled with chopped octopus, is a popular Japanese street food.
The bullet train (Shinkansen), which began operation in 1964, was the first high-speed train system in the world and is still one of the fastest.
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.