The term 'Largest City in Iran' is answered by the crossword solution 'TEHRAN' (6 letters). Tehran is the capital and largest city of Iran, located in the north of the country. It is the most populous city in Iran and Western Asia, with a population of 8.8 million in the city and 15 million in the larger metropolitan area. Tehran is home to many historical sites, including the Golestan Palace, the National Museum of Iran, and the Azadi Tower.