The Echigo-Tsumari Art Trennial festival began on Sunday (July 26th) and is set to show more than 350 artworks from now until September.
Held in Tokamachi City and Tsunan Town in Niigata Prefecture, the festival expected to attract artists from 38 different countries.
Tokamachi also holds a kimonofestival every Spring and has a long history of producing cloth and fabric.
Brits planning a holiday to Japan have plenty of time to catch the event, as it is scheduled to run until September 13th.
The event is the largest art festival in the world and this year's is the fourth to be held.
Artists from countries including Japan, Switzerland, Canada, France and Indonesia are all signed up to show their work.
One of the exhibits, Dream House, is by artist Janet Lawrence.
The work is a guesthouse which people can stay overnight in, then in the morning, they tell the artist what dreams they had and she records them in a dream book.