Kashan is a city in Iran. It is near Isfahan, about from Tehran. The city is known for its textiles. In the Middle Ages, it was also known for ceramics. As of 2012, about 275,000 people live in the city, about 317,000 in its metropolitan area. The city is along the road from Qom to Kerman. Kashan is located at the edge of a desert, along the first oasis. The city has a desert climate, with hot summers, and cold winters.