The Tracts of Saint George

The Đurđevi Stupovi Monastery is a Serbian Orthodox monastery located in the vicinity of medieval Stari Ras and today's city of Novi Pazar, in the Raška region of Serbia.

The monastery is located near Novi Pazar, on the top of a prominent elevation covered with woods. It was erected in ca. 1170 as an endowment of Grand Prince Stefan Nemanja, dedicated to St. George; it is known as the "Pillars of St. George". The monastery is exceptional not only for its position and significance it had according to medieval chronicles and manuscripts, but also for its particular architecture. It was named after the church dedicated to St George and its two former bell towers, two high towers – pillars. Namely, according to Stefan the First-Crowned, Nemanja had built this church to commemorate his gratitude to St. George for saving him from dungeons-caves where he was put by his brothers.

Source: Wikipedia