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.
Sendai is the largest city in Japan's Tohoku region, located in northeastern Japan, and is known for its cultural festivals and cuisine.
Takamatsu is a city located on the island of Shikoku, and is known for its beautiful gardens, udon noodles, and art museums.
