The Kashan city is an ancient city that has seen many events throughout history. The smart and great people of Kashan built a city under the city of Kashan to protect the city's life, which is called the Nushabad city or Oy.
The underground city of Noushabad, dating back to the Sassanid era (1,500 years ago), is located west of the city of Aran and Bidgol and 10 km from Kashan. Of course, this city has not grown from the beginning and has evolved over 500 years, and during the Seljuk period, the Safavids and even the Qajar have been used.
This marvelous city, the largest handy city in the world, is considered to be built at a depth of 4-18 meters from the ground and in 3 floors. The only way to enter this mysterious world is entranced with 120 meters high and only passes through one person. It is interesting to know that the architecture of this city is very complex and its structure is defensive and military. The city has twisted corridors, small rooms and large, defensive and protective traps, which seemed to use during an invasion of the enemy.
The corridors of this city designed in such a way that only one person could pass through it and lit by a torch. At the time of the enemy's attack, when the people wanted to enter the city, the first man lit the torches, and the last one turned off the torches that could not find a way if the enemy had followed them into the city. The corridors of the city angularly shaped that you cannot see inside rooms easily. In these rooms, there are niches and platforms made to use putting up the equipment and sitting people.
There were vertical wells to go to the floors and had stone doors. Beside them, there were rocks that, if the attacker wanted to attack, stoned it.
The great mystery that hides in this city is its ventilation system. The beginning of the city's canals from the surface of the earth and its U-shaped structure, in addition to passing the people in insecurity and has made it possible to enter and exit the air. Its creators made the city walls behind the currents of the aqueduct to allow the cooling air to flow.
It is interesting to know that this city accidentally discovered in 1383.
The Kashan city is a desert city, so it has warm summer and relatively cold winter, so the best season to go to Kashan are spring and autumn. The underground city of Noushabad is open every day from 8:30 AM to 5:30 PM and its entrance to foreign nationals is about 150,000 rials.
The Noushabad city is 13 km from Kashan. It takes about 20 minutes to get to this underground city.