File:Mudurnu062007 7402.jpg
This 'Yıldırım Camii' is still Mudurnu’s largest historic monument. It has been restored several times: in 1776, 1839, 1900, 1956 for certain (these dates are documented).
Source: ‘Vakıf Abideler ve eski Eserler’ II - Vakıflar Genel Müdürlüğü, Ankara 1977.