Photo credits pages 2 and 3, clockwise from top left: © Massimo Pizzotti / ​ age fotostock and Hagia Sophia; © Angelo Cavalli / ​ age fotostock; © Alain Caste / ​ age fotostock; © 2010 SuperStock; Engravings by Doré
Photo credits pages 2 and 3 ,‎ counterclockwise from top right: © Massimo Pizzotti / ​ age fotostock and Hagia Sophia; © Angelo Cavalli / ​ age fotostock; © Alain Caste / ​ age fotostock; © 2010 SuperStock; Engravings by Doré