Pompeii is a landmark.
Pompeii . Today it has UNESCO World Heritage Site status and is one of the most popular tourist attractions in Italy , with approximately 2.5 million visitors every year . A World Heritage Site is a landmark or area which has been officially recognized by the United Nations , specifically by the United Nations Educational , Scientific and Cultural Organization ( UNESCO ) . More specifically , a World Heritage Site is an already classified landmark , which by way of being unique in some respect as a geographically and historically identifiable piece is of special cultural or physical significance ( such as either due to hosting an ancient ruins or some historical structure , building , city , complex , desert , forest , island , lake , monument , or mountain ) and symbolizes a remarkable footprint of extreme human endeavour often coupled with some act of indisputable accomplishment of humanity which then serves as a surviving evidence of its intellectual existence on the planet .