The architecture monument is located in Karagoyunlu village of Aghsu region. The monument was constructed in 1286 according to Hijri calendar (1869-1870). The walls were built with red-burnt bricks in the form of octahedral prism. There is only one entrance. There are no windows. The monument has an arched cupola. Later on, in order to prevent natural weathering, the roof of the tomb was covered with colored red iron layer. There is a grave in the inside of the cupola, in the central part. Four-cornered stone box was put on the grave. Arabic script inscriptions were carved in both sides of the box and on the tombstone. The following was written on the tombstone: "All will perish except God. This grave belongs to deceased Haji Soltan Baba ibn (the son) Haji Salman, whose sins were forgiven. Allah (God), Mahammad. Year 1286 (1869-1870)". (The writing was read by M.Nemet, Doctor of Historical Sciences).

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