After the congress, Mustafa Kemal Pasha (later Atatürk) and his friends stayed in this building until 18 December 1919, when they left for Ankara.
In 1984, upon the instruction of president Kenan Evren, the building was acquired by the Ministry of Culture.
Another room, named Hacı Beslen, houses ethnographic items like coins, calligraphy, and paintings, which were donated by Turan Türkeroğlu.
In another room is a collection of Sivas rugs and a 12th-century wooden mimber (pulpit) from Divriği castle mosque.
Copper works, tekke (a type of Islam institution of the Ottoman times) articles and clothes are exhibited in other rooms.