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 is less attractive but cheaper.
During Zand dynasty, Tehran was a little town that was significant from a strategic point of view. The first of the Qajar kings, Agha Mohammed Khan, chose 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 built by Agha Mohammed Khan was to contain the new majestic buildings.
During reign of Nassereddin Shah the city's master sketch was prepared and modern streets were constructed. Later, huge central squares like Toopkhaneh square (now Imam Khomeini) and quite a few military buildings were built. Although Qajar dynasty was in a period of decline, Tehran soon took the shape of a modern city. The structure of large government buildings, new streets, urban service organizations, and academic and methodical centers were started, even as most of the old gates and buildings were destroyed and the city's old architectural fabric replaced by a contemporary one.
Tehran has also earned itself the rather unenviable reputation as a smog-filled, traffic-clogged and featureless sprawl of concrete bursting at the seams with 15 million residents. But meanwhile Tehran is also a city of parks and possesses more than 800 of them, all well-kept. The city is nearly a mile high above sea level and as a result is cooler than other cities in the middle east. Summer temperatures are around 32°C or about 90-95°F. The air tends to be very dry.
A combination of factors make Tehran a pleasant place to visit: The dry climate which is constantly cool (at least in the evenings), the proximity of the mountains, the parks and gardens where flowers blossom all through the year, the alleys of trees in the avenues or even smaller streets, and even the water that runs down from the upper city along deep and wide gutters which look like small rivers during spring. The Alborz range on the north of Tehran, which hosts Damavand -the highest peak in Iran- provides fantastic conditions for ski lovers in the winter. In winter, the mountain hotels and ski resorts at Shemshak, and Dizine are full several days a week. Some specialist skiers consider the snow value in northern Tehran to be one of the most excellent in the world.The main feature of Tehran tourist centers are its interesting museums such as Tehran National museum which is known as the first Iranian archaeological museum, divided into two sections based on different periods of Iranian history: PreIslamic and Islamic periods, the carpet musem comprises of two halls displaying some finest Iranian carpets from different regions and glassware museum which is a beautiful Qajar building full of interesting objects.
During your stay you can also enjoy visiting tehran palaces such as the 410 hectars Sa'ad Abad Complex which was the residential palaces of Mohammad Reza Shah, his father and some members of the former Iranian royal family , Niavaran complex palace complex in north east Tehran and the famous Golestan palace dating back to Qajar era.