This document provides information about various locations and historical sites in the Turkish provinces of Bayburt and Bilecik. It discusses the Castle of Bayburt, underground city of Aydıntepe, ice caves, and Bayburt onyx. For Bilecik, it outlines Sheikh Edebali's influential role in the early Ottoman Empire and describes his tomb and advice to Osman Ghazi, the founder of the Ottoman Empire. It also mentions the tomb of Ertugul Ghazi, father of Osman Ghazi, in Söğüt and historical ruins in Osmaneli.