Tehran is the capital of Iran and Tehran Province. With a population of around 9 million in the city and 16 million in the wider metropolitan area, Tehran is the largest city and urban area of Iran, the 2nd-largest city in Western Asia, and the 3rd-largest in the Middle East. It is ranked 29th in the world by the population of its metropolitan area.
In the Classical era, part of the present-day city of Tehran was occupied by a Median city which in the Avesta occurs as Rhaga. It was destroyed by the Mongols in the early 13th century, and remains now as a city in Tehran Province, located towards the southern end of the modern-day city of Tehran.

1- Moshirodole Pirnia house in Lalezar street

2. Bagh Ferdos in North of Tehran Built during the Qajar