The Tokyo Marathon, first held in 2007, has become one of the most popular marathons in the world, with over 30,000 runners participating each year.

Karashi, a type of spicy mustard, is often served as a condiment with Japanese dishes such as sushi and grilled meat.

The Japanese night heron is a species of heron that is found throughout Japan's wetlands and is known for its distinctive long neck and beak.