Azadi Square (Persian: میدان آزادی - Meydān e Āzādi‎‎), literally the Freedom or Liberty Square, is a city square in Tehran, Iran.It has an area of about 50,000 m2, plus adjacent areas, and is the largest square in Tehran and the second largest in Iran, being smaller than Naqsh-e Jahan Square in Isfahan.The 50 m Azadi Tower is in the centre of the square.Before the Iranian Revolution, it was called the "Shahyad Square" (Persian: میدان شهیاد - Meydān e Ŝahyād‎‎) meaning "King Memorial Square", and was the site of many of the Revolution's demonstrations leading up to 12 December 1979.