The Oya Museum is a huge underground space created by the quarrying of Oya stone over a period of 70 years from 1919 to 1986. It covers an area of 20,000 square meters, which is larger than a baseball field. The average temperature in the quarry throughout the year is around 8 degrees Celsius (46°F), making it like a large underground refrigerator. During the war it was used as an underground munitions factory. After the war, it was used by the government as a storage facility for rice. Now, it is used for concerts, art exhibitions, and weddings.–––
909 Oyamachi,Utsunomiya City ℡028-652-1232
Fee: Adult 800 yen, Child （Elementary and junior high school students） 400 yen
APR-NOV 9:00-17:00（Last entry 16:30）
DEC-MAR 9:30-16:30（Last entry 16:00）
APR-NOV : Open every day
DEC-MAR : Closed Tue （The following day if Tue is a national holiday）
