People read books at a bookstore inside the Tianjin Television Tower in Hexi District of Tianjin, north China, June 25, 2020. The bookstore is 257 meters high above the ground and occupies an area of 600 square meters. Besides reading, people can also overlook the panoramic view of the city here. (Xinhua/Li Ran)

A girl visits a bookstore inside the Tianjin Television Tower in Hexi District of Tianjin, north China, June 25, 2020. The bookstore is 257 meters high above the ground and occupies an area of 600 square meters. Besides reading, people can also overlook the panoramic view of the city here. (Xinhua/Li Ran)

A man reads a book at a bookstore inside the Tianjin Television Tower in Hexi District of Tianjin, north China, June 25, 2020. The bookstore is 257 meters high above the ground and occupies an area of 600 square meters. Besides reading, people can also overlook the panoramic view of the city here. (Xinhua/Li Ran)

People read books at a bookstore inside the Tianjin Television Tower in Hexi District of Tianjin, north China, June 25, 2020. The bookstore is 257 meters high above the ground and occupies an area of 600 square meters. Besides reading, people can also overlook the panoramic view of the city here. (Xinhua/Li Ran)