Soltaniyeh Dom IS Oljaitou tomb (Ill khani or Mohammad Khodabande) that belong to 1302-1312AD that was made in Soltaniye city ,it is located in Zanjan province
This dome is one of the famous Iranian/Islamic architectural monument that is establishes by world heritage organization.( UNESCO World Heritage ).
Estimation:48/5 m(161ft) tall from base, with 25/5m diameter