The old bazaar of Isfahan dates back to the 11th century during the Seljuk era. Originally, Grand Bazaar was built on the southwest wing of Jameh Mosque and Kohneh Square but later it was expanded to Naqsh-e Jahan Square. This section of the bazaar is also known as Keisaria Bazaar. It is due to to the Keisaria Gate on the northern side of the Naqsh-e Jahan Square.
The Grand Bazaar which goes around the Naqsh-e Jahan Square was built at the start of the 16th century. This bazaar has almost 5 kilometers of shopping streets with many arches and corridors. In the past, this bazaar was the centre of the city and it was also a meeting point for the locals. There are many other bazaars in Iran but Isfahan bazaar is one of the largest. Entrance of the Grand Bazaar on the northern side is sometimes referred as the main entrance of the bazaar.