A special library opened in Norway. But it may be a little hard for you (visit). It is 150 meters the ground. It is inside old mine (矿井) on the island of Svalbard. The island is about 1, 000 kilometers from the North Pole.
The library (call) The World Arctic Archive(世界北极档案室). In fact, it's not made for people to visit. It is to protect the world's most important books natural disasters and wars, reported the Daily Mail. Some people call it the "doomsday (世界末日)library".
According to the company built the library, Svalbard was the (good) place to build it. "Deep in the permafrost, it's about minus (零下) 10 degrees, " the company told The Verge, a famous website. "In this environment, the books can last for more than 500 years."
So far, three (country)- Norway, Mexico and Brazil-have (put) books in the library. The Brazilian Constitution (宪法) is one of the books.
