The Azadi Tower formerly known as the Shahyad Tower (برج شهیاد — ; "King's Memorial Tower"), is a monument located at Azadi Square, in Tehran City, Iran. It is one of the symbols of Tehran, and marks the west entrance to the city. It was commissioned by Mohammad Reza Pahlavi, the last Shah of Iran, to mark 2,500 years of the Persian Empire.
After winning a competition, Hossein Amanat was tasked to design the tower, his client being the Council for Celebrations. His ideas were based upon Islamic Iranian and Sassanid architecture, popular influences on the arts during the 1960s due to the Shah's White Revolution. Iran's increasing wealth sparked modernization programs and sent the art industry into a renaissance-like period.