In Japan, there are some art festivals, for example, Art Setouchi (Triennale) and Echigo Tsumari Art Field. I like going to them, so I’ve been to both several times.
Now, Japan Alps Art Festival 2017 is being held from June 4th to July 31st at Omachi in Japan. There are about 30 pieces of art in this festival. The pieces of art vary widely, some are inside and some outside, and are from small to huge. Visitors can buy a passport, which allows them to see all the art, for 2500 yen, but they can also see some of the art for free.