Tehran is a cosmopolitan city, with great museums, parks, restaurants, and warm friendly people. It deserves at least a few days of your Iranian itinerary. The city can be roughly divided into two different parts – north and south. The northern districts of Tehran are more prosperous, modern, cosmopolitan and expensive while southern parts are less attractive but cheaper.
At the time of the Zand dynasty, it was a little town that was significant from a strategic point of view. The first of the Qajar kings, Agha Mohammed Khan, named Tehran as the country’s capital in 1778, and most of its growth started during the reign of a subsequent Qajar monarch, Fath-Ali Shah. The castle which Agha Mohammed Khan had built was to contain the new majestic buildings.