This book explores how the museum concept has expanded beyond the boundaries of a single building into the historic city itself through musealization. Articulating the musealization of historic cities as a specific urban process, the book here presents a study of the transformation of the Sultanahmet district on Istanbul’s historic peninsula, which has been the major focus of planning, conservation and museological studies in Turkey since the 19th century as the public face of the city. The author aims to offer empirically grounded and context-specific insight into the role of museums in the regeneration of historic cities. Musealization as an urban process varies in different geographical, cultural and ideological contexts, and across different time periods. By discussing the Sultanahmet district as a specific context of yet another city subjected to the musealization process, this book provides further insights into this important global phenomenon.