Adjacent to the Pritzger Pavilion, by Frank Gehry,are 2 other interesting pieces of sculpture that really capture 2 different styles of monuments.The first is a very classical structure, the Millennium Monument in Wrigley Square. It is a slightly smaller version of a Greek (doric) styled monument, designed by Edward Bennett, (who also designed the famous Buckingham Fountain nearby) which stood nearby from 1917 till 1953. I love classical structures like these, but sadly it was the emptiest part of the whole park.The Cloud-gate, lovingly nicknamed the bean for obvious reasons, was immensly more popular. I could see why: totally interactive, people loved to look at their own reflections 'carnival style' and walk in, around and under it. The sculpture sits in the AT&T plaza section: built of polished steel, it weighs in at 110 TONS! The heavy work was the first installation by artist Anish Kapoor in the United States and cost upwards of $23 million -about 5 times more than the classical Millenium monument! It is meant to depict a drop of mercury right before impact with the ground. The sculpture was hand polished on site after delivery to hide the weld-lines. They did a good job because it is amazingly PERFECT (although it could do with a good washing with windex!). You can easily see why this is the most popular piece in the park! If you plan a trip to Chicago (and you must!) plan to visit the Millennium Park!