Isfahan especially caught my attention and I was stunned by its architecture. It is the third largest city in Iran and was once one of the largest cities in the world. It was the capital of the Persian empire in the 16th century and thus speaks greatly of its historic glory today. It is lovely walking down the streets of Isfahan with its lovely Islamic architecture, beautiful boulevards, covered bridges, palaces, mosques, and minarets. Isfahan is one of the most beautiful cities in Iran and definitely not to be missed.