The Melancholy of Haruhi Suzumiya, created by Nagaru Tanigawa in 2003, is a popular light novel series and anime that explores themes of existentialism, time travel, and alternate realities.

Sumo wrestling is a popular traditional sport in Japan, with tournaments held six times a year.

The Japanese giant salamander is one of the world's largest amphibians and is native to Japan's freshwater rivers and streams.