Iran has undoubtedly played the most significant role in the evolution of human civilization. The land that we call Iran today is the reminder of an ancient civilization. Archeological findings indicate that ancient dwellers resided in Iran back in 15,000 years ago and it is still a residence of people of the 21st century.
Iran has experienced many upheavals and lived through all of them to be the host of a million historical attractions. Some of them such as Persepolis, Chogha Zanbil, Ziggurat, Pasargadae, Susa and some world heritage sites will give you an insight to the ancient Iranian civilizations. Travel to as many cities as you can; spend as many days as your time frame allows you in every city. They never fail to satisfy your curiosity for new experience to see the ancient Persian civilization.