baraman and sadr bahar majaste paran baraman refra. for this, it is enough to take a video and photo horizontally using a mobile phone and send it to our address in yes soroush ita and rubika messengers . may god bless us. today we have 27 valuable works in the list of world works has been registered in unesco and we are going we register the global work jointly with each other, which means that the owner of this work is all the people of the world. world heritage, an international treaty that was approved by the unesco general conference in 1972, and iran joined this treaty 3 years later on february 26, 1975. based on this convention, member states can their historical, natural and cultural works. registered as world heritage. the three works of shagha zanbil, persepolis and naqsh jahan square were the first places that were registered in the unesco world heritage. from 1357 to 1382 we neglected 24 years and in the same 24 it was a year when all countries started registering this international activity again due to the lack of tens an