Some popular things to do in downtown Chicago include a visit to the Skydeck of Willis Tower or the Art Institute Chicago and a walk around the Millennium Park. Along with free and ticketed events, such as concerts and film screenings, the 25-acre Millennium Park is home to outdoor art installations. These include the iconic "Cloud Gate," a bulbous and reflective stainless steel monument.
Downtown Chicago's Millennium Park is also home to Lurie Garden, a 5-acre nature reserve and the location for free talks and workshops on various ecological subjects and gardening. Among the other events that take place in Millennium Park are the annual Downtown Sound free music festival, the classical Grant Park Music Festival and a Family Fun Festival, complete with songs, dance, arts and crafts.
The Art Institute Chicago receives 1.5 million international visitors each year. Its 300,000-strong permanent art collection is spread across eight buildings. The Art Institute also hosts 30 special exhibitions each year, along with gallery talks, performances and other events.
The Skydeck of Willis Tower, the tallest building in the Western Hemisphere, is another hugely popular tourist attraction in downtown Chicago. Of particular interest is the Ledge, which sits 1,353 feet above ground level. Constructed from steel and glass, the Ledge juts out over downtown Chicago, offering visitors a virtually unimpeded view of the city.