We just learned about the Untitled - Dan Flavin.
Another famous American sculpture is Spiral Jetty, made by Robert Smithson in 1970 in Utah.
This is a type of art called Land Art, which uses the land and earth to make a sculpture.
Spiral Jetty is 1,500 feet long spiral, made of mud, salt crystals and rocks.
The artist Smithson was born in 1938 in New Jersey, and went to art school in New York City.
(from: wikipedia - spiral jetty)
Kid Facts - Blast from the past: Patience and Fortitude