From the moment of registration, each site has the possibility to use the World Heritage logo, alongside the famous UNESCO logo In the shape of a Greek temple, to signal membership in the List. The emblem has a very strong meaning, identifying an asset considered so unique and exceptional that it deserves the protection of all humanity. For this reason, its use is subject to very strict rules, and under no circumstances can it be used as a promotional brand or for commercial purposes.

“The logo used to identify the sites inscribed on the World Heritage List was designed by Belgian artist Michel Olyff. The emblem consists of a circle enclosing a square, the two geometric figures representing the natural resources (nature and its gifts) and those cultural (man, his culture, and his skills), joined in a symbolic embrace. The circle also represents the world and recalls the objectives of global protection for the heritage of all humanity.” From “The Importance of Being UNESCO” by Fausto Natali (SITI Magazine, January/March 2008)
RULES FOR USE OF THE LOGO
Except for the site management bodies, which must however comply with specific regulations, it is not possible to use the World Heritage logo without specific authorizationOn this page you can find the guidelines for using the logo and how to submit a permission request.
https://whc.unesco.org/en/emblem/