The Cathedral of León, also known as the Real e Insigne Basilica Catedral de León Nicaragua,(Real and renowned Basilica Cathedral of the Assumption of the Blessed Virgin Mary) is a significantly important and historic landmark in Nicaragua. The Cathedral was awarded World Heritage Site status with the United Nations Educational, Scientific and Cultural Organization (UNESCO). The site's nomination is Nicaragua's third cultural landmark, following the ruins of León Viejo and El Güegüense .