Since 1991, UNESCO has implemented a global memory program to preserve and facilitate access to these worthy documents, following increased awareness of the dangers that threaten world heritage. UNESCO aims to prevent the spoiling, scattering, illegal trading and destruction of the world documentary heritage by implementing the program. According to UNESCO, these threatening dangers have existed for centuries, but wars, social unrest and lack of funding have intensified.
The natural, cultural and historical monuments of every country have a great role to play in the globalization of its precious identity and the strengthening of the tourism industry. Incorporating these works into the UNESCO World Heritage List has provided an excellent opportunity to introduce the valuable heritage of countries around the world. Many countries in the world, with little cultural, natural and historical attractions, have been able to thrive in the tourism industry and achieve clear social and cultural perspectives apart from economic consequences. Many years ago, an international treaty, the UNESCO World Heritage, was ratified by the UNESCO General Conference, which deals with the preservation of human, natural and cultural artifacts. Values that are of universal importance and belong to all human beings and future generations. Under this convention, UNESCO member states can nominate their country's historical, natural and cultural heritage as a World Heritage Site. After the necessary examination by UNESCO and the registration of their protection effects under the jurisdiction of the State concerned, it will be the responsibility of all Member States and the financial and professional power of Member States may be used to protect it. Every two years, each country can submit two works to UNESCO for recording in Memory of the World.
There are currently Ten UNESCO Memory of the World on Iran List;