What has come to be known as the underground city of "Oui" are dense, complex and extensive
structures such as nested narrow corridors and small-sized rooms. The Oui complex was formed
under the fabric of the city and has expanded to the current level of the city. The depth of
Oui city is estimated between 4 and 16 meters. According to the residents of the region, its
extent has been extended to the outside of the city's historical fence and is estimated to be
four kilometers. They created this collection by hand under the texture of Noushabad city as
a set of rooms, corridors, wells and numerous channels on three floors.
On the walls of this city, you can see the impact of the edge of a sharp object. Due to the
hardness of the earth in this area, archaeologists have hypothesized that the tools used in
digging must have had a diamond-like quality.
The first floor was actually hallways and corridors that were used to mislead potential
pursuers. The second and third floors were shelters and places to live in times of danger and
to store provisions. Several entrances to the lower city have been identified, many of which
have been blocked by floods many years ago. The city had winding corridors, small and large
rooms, defense and defense traps, which were apparently used during enemy attacks.
The size of this city is large due to the connection between its neighborhoods and the
protection of people's lives and property in times of insecurity, and it has been expanded on
both horizontal and vertical levels. This architecture, at least in the city of Noushabad, is
called "Oui". Except for the entrance, the height of all parts of Oui is the normal height of
a human between 170 and 180 cm. On the surface of the walls and at small distances, you can
see a burnt place.
In some parts, the wall of short platforms for sitting has been created, which in some rooms
becomes a niche for placing things. The entrance to the underground city of Noushabad is a
narrow corridor the size of one person. When entering the city, you can smell the wet soil.
Narrow corridors with a height less than a standing person lead one to the inner parts of
the city.
Vertical wells play the role of floor communication ways, and U-shaped wells are used for air
conditioning. There was a way here from people's houses and social centers such as baths and
mosques as well as the castle near the city. The spaces considered for the city are limited
to the necessary spaces, and its ventilation system works based on the air pressure
difference with the ground surface, which enables the circulation and purification of air for
breathing in it. Small cells measuring two meters by two meters, basic toilets, shelter spaces,
communication and air conditioning tunnels and water wells are among the spaces of this
underground city.
Most of the experts believe that the core of the city belongs to the Sassanid period; However,
what is clear is that the underground city of Noushabad was the residence of tribes and people
in different periods. It is said that during the Mongol attacks, this city was used for the
safety of the people. Many details of the city have been lost due to floods and the passage of
time; But pottery has been found that dates back to 1800 years ago and to the Sasanian era.
You can also see works from the Safavi period to the Qajar era.
