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.
The Japanese serow is a goat-antelope native to Japan's mountainous regions, and is considered a national treasure in Japan.
Natto, a fermented soybean dish that is known for its strong odor and slimy texture, is a popular Japanese food that is often eaten for breakfast.
