found that the presence of column in Iranian architecture goes
back to six millenniums ago.
After discovering several bases in Mousian Hill, 150 km
northwest of Susa, they now believe the importance of erecting
columns was recognized 6,000 years ago, though the oldest ever
discovered Iranian site featuring columns is Hassanlou Fort,
south of the Uremia Lake and near the city of Naghade.
fort is built based on architecture principles and is made of
stones, bricks and plaster.
Beside Hassanlou Fort, one can cite residential pits dug out in
mountains, some dating back to the Medes dynasty, frequently
using columns in their buildings.
of the characteristics of these pits is arch corridors and
columns used at the mouth of them. Many of these pits also
showcase engraved scenes on the walls, depicting prayer rituals
in ancient Persia (now called Iran).