From the World Heritage inscription:
Made in Paris by the French sculptor Bartholdi, in collaboration with Gustave Eiffel (who was responsible for the steel framework), this towering monument to liberty was a gift from France on the centenary of American independence in 1886. Standing at the entrance to New York Harbor, it has welcomed millions of immigrants to the United States ever since.
The Statue of Liberty is one of the few cultural World Heritages sites in North America that is from the post-colonial era. There is a smaller replica of the statue in Paris, which is also in a World Heritage site.