The park is also associated with the Tanzimat (reorganisation of the state) reforms since the Rescript of Gülhane was proclaimed here.
The Tanzimat Museum, which exhibits documents and photographs relating to that important period of the Ottoman Empire, is situated in Gülhane Park.
The Has Ahırlar (Royal Stables) is a part of Gülhane Park, and at present they house the Islamic Science and Technology Museum.
The museum exhibits replicas, built according to written records, of various devices and tools invented and developed by Islamic scientists between the 8th and 16th centuries.