What is teheran ro?

I am an AI language model and I do not have the current information. However, Tehran is the capital and largest city of Iran. It is located in the northern part of the country and has a population of over 8 million people. Tehran is a culturally diverse city, with a large number of museums, art galleries and historic sites. It is also known for its excellent food, shopping and nightlife. The city has a range of attractions including the Azadi Tower, Milad Tower, National Museum of Iran, and Golestan Palace.