The United States has honored Frank Lloyd Wright -- widely considered the father of modern architecture -- by nominating ten of his buildings for inclusion on the UNESCO World Heritage List. This is the first time that the U.S. has included works of modern architecture on its ballot and the first time that it has nominated a new site since 2013.

According to UNESCO, to be included on the World Heritage List, a site must be of outstanding universal value and meet at least one out of the ten selection criteria, which includes “representing a masterpiece of human creative genius” and “serving as an outstanding example of a type of architectural building, which illustrates a significant stage in human history.” If added to the World Heritage List, the buildings would join the ranks of such iconic modern structures as the innovative Sydney Opera House by Danish architect Jørn Utzon and Spanish Catalan architect Antoni Gaudi’s sculptural works in Barcelona, including Parque Güel and Crypt of La Sagrada Familia.