(AFP/Getty Images photo)

The Artron Wall at the 11th International Culture Industry Fair in Shenzhen, May 2015. The wall is more than 160 feet in length and nearly 100 feet high. It houses hundreds of thousands of books from more than 2,000 countries in 50,000 categories, with books in Chinese, English, French, German, Italian, Japanese, Spanish, Russian, and other languages.

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The Artron Wall at the 11th International Culture Industry Fair in Shenzhen, May 2015. The wall is more than 160 feet in length and nearly 100 feet high. It houses hundreds of thousands of books from more than 2,000 countries in 50,000 categories, with books in Chinese, English, French, German, Italian, Japanese, Spanish, Russian, and other languages.