Qazvin is one of Iran’s historic cities located in the northwest of the country, known for its ancient architecture, historical landmarks, and rich cultural heritage. The city once served as the capital of Iran during the Safavid era and still preserves many valuable monuments from that time. Notable attractions include the Sa'd al-Saltaneh Caravanserai, one of the largest covered caravanserais in Iran, and the Chehel Sotoun Palace, Qazvin. Qazvin is a city where history, art, and Persian architecture come together beautifully.