Millennium Park was founded in 1997, is located in prime locations in Chicago, was completed in July 2004, is designed by the chief designer of the famous post-modern deconstruction master architect Frank Gehry. The park area of 100,000 square meters at a cost of 500 million dollars, a concentration of the "post-modern architectural style", is a free park that is a collection of entertainment, leisure and culture, has also become one of the landmarks in Chicago. Cloud Gate, Jay Pritzker Music Pavilion and the Crown Fountain in Millennium Park is the most representative of the three post-modern architectures.