This is Tashan.

Bolu Taşhan, Bolu city center is among the places to visit. The Big Cami neighborhood, Pamukçular Street, is located on 5 plots, 60 islands, 12 plots. In the booklet above the large sentence door, H. 1219 C.E. It is recorded that it was built by Serbevvab Hajji Abdullah Agha in 1804. For this reason, it is one of the historical places to visit in Bolu. Bolu Taşhan is a two-story, open-air courtyard with a recess made of cut stone. The entrance door, covered with a cradle tonoz, located in the west, protrudes out of the body walls and is in the form of a large balcony. The entrance door has a round arch and opens to the entrance balcony. In the entrance porch, there is a staircase to the second floor with a pointed arched niche in the north and south walls, and a door on the right. There's a staircase upstairs, and there's a door on the right. Bolu Taşhan is one of the tourist attractions in Bolu that can be added to the Bolu travel guide as a historical building tour.