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.

Yamagata is a city located in northern Japan, and is known for its beautiful scenery, hot springs, and delicious cherries.

The Japanese murrelet is a small seabird that is native to Japan's coastal waters and is known for its distinctive black and white markings.