The Library of Duchess Anna Amalia is located in Weimar. It was established by Duchess Anna Amalia in 1761 AD in a building known as the Green Castle, which was built between 1562 and 1565 AD, and includes a large collection of books from German literature, in addition to historical documents that reflect the classic literature of the city. And manuscripts and maps dating back to the Middle Ages, and is considered one of the most famous landmarks in the city that tourists visit to enjoy its valuable possessions in addition to its distinctive architecture.