Güpgüpoğlu Mansion (Güpgüpoğlu Konağı), the oldest and best preserved of Kayseri houses, was first built between 1419-1497 and expanded with additions and changes that continued until the 18th century. The mansion consists of harem and selamlık sections facing north, each with its own courtyard. The two-storey mansion attracts attention with stone decorations on the outside and hand-carved wooden ornamentation inside. The eastern part of the mansion, where the harem and selamlık are located, was transformed into a museum in 1998, when the Ethnography Museum was moved.