In Bonab County in East Azerbaijan, mosques, houses, dovecotes, and numerous historic places exist that some of them are as following: 
Seyf-al-Olama Mansion originally belongs to Sheikh Ali Ghazi Bonabi known as Seyf-al-Olama, and this nickname was given by Naseroddin Shah and after victory of Sheikh Ali Ghazi and People of Bonab against attacks by Kurds. Its construction date is beginning of Qajar era. 
This building has been recorded in list of national works with registry number 3929, and in 1379 (2000) it was purchased by cultural heritage as department number 2 of cultural heritage organization and then it has been repaired.
 

Saint Stepanos Monastery is the second important Armenian monastery in Iran after St. Thaddeus Monastery. This monument is located in East Azerbaijan Province, 16 kilometers west of Jolfa City and 3 kilometers from southern shore of Aras River in a place named "Qezel Vank" (Red Monastery). The monastery was built in 9th century AD, but it was seriously damaged by earthquake. So, it was refurbished in Safavid period. Also, some measures were taken in Qajar era by Abbas Mirza to maintain and repair it. 
The whole area of the monastery is located in the heart of mountains and in the middle of the green nature of Jolfa and Azerbaijan Republic borderline. 
This monastery is respected by all Christians and almost all other religions. However, it actually belongs to Gregory Christians (Followers of Gregory the Illuminator) inhabiting in Armenia. One day in the year, thousands of Armenians gather together in this place to perform their rituals. 
There are three other monasteries near St. Stepanos Monastery in Darashamb District. 
St. Stepanos Monastery was registered in Iran's National Heritage on March 6, 1963 under the registration number of 429. It was also registered in UNESCO World Heritage in 2008.