Zanjan has a history closely connected to that of Azarbaijan which has shaped the main ethnic group of the province, with agriculture as the principal occupation of the entire region of a highland climate characterized by snowy mountains and moderate climate in the plains. The main highlights include:

 Soltaniyeh a great achievements of Persian architecture (World Heritage Site), the handsomely embellished monument with the largest brick dome covered in turquoise-blue faience.

 Takht-e Soleyman a striking archaeological site (World Heritage Site), a massive complex of palaces and temples representing an example of a Zoroastrian sanctuary integrated with Royal Palaces.