The historical Musalla of Naeen is a valuable historical structure located in the city of Naeen. It was built by the order of Mohammad Shah, the third king of the Qajar dynasty. The Musalla is situated outside the historical texture of Naeen and is currently located in the new part of the city on Shahrdari Street. The architectural design of the Musalla is rectangular with four towers positioned at the corners, and the walls are constructed in a spiral pattern with brickwork.
Inside the Musalla, there is a beautiful garden covering an area of fifteen square meters, divided into four smaller gardens by four streets. The garden includes the family tomb of Pirnia, one of the largest families in Naeen. Additionally, the tomb of Hajj Abd ol-Vahhab and Hajj Mohammad Hassan Koozehkanani, as well as the mausoleum of Hajj Mohammad Hassan Sufi, who were prominent figures and ancestors of the Pirnia family, can be seen there.
Just after the entrance, a precious marble tombstone belonging to Seyyed Ali bin Ahmad Noorbakhshi, the leader of the Noorbakhshi Sufi order, is visible. The mentioned tombstone is in the form of an octagonal structure adorned with turquoise tilework. The dome of the tomb is constructed with a double shell.
Three doors resembling Iwans are present on the outer façade on three sides of the rectangular structure, while on the remaining four sides, tall doors can be seen. The edges of the Musalla's roof are decorated with beautiful wooden eaves, beneath which paintings are displayed. Inside the Musalla, formal decorations and geometric designs can be observed.
This historical building has been registered as a national heritage site of Iran with the registration number 1719 on August 4th, 1986. It is placed at the end of Shahrdari Street in Naeen.