Formerly the Capital of Iran, Tabriz is a major historical center full of heritage monuments. The history of this place dates back to 2500 years, and it has been one of the most important centers on the famous Silk Route. This city is home to a number of museums from the Iron age and the Qajar period. The most famous site here is the Tabriz Historic Bazaar Complex. A UNESCO World Heritage Site, this is one of the oldest and the largest covered bazaar in the world. You can visit beautiful mosques and museums here.