Millennium park rising by the lakefront, millennium park is a great place to spend a day. it is a complex of examples of modern architecture. one can say it is an outdoor modern design gallery. most elements of this outstanding park are free for the park is especially for its connection with music. in summer, millennium park hosts free concerts at lunchtime and at 6.30 pm. for the latter, bring a picnic basket and enjoy new music on mondays, jazz and world music on thursdays, and classical music on a basis. each saturday free exercise classes (yoga at 8 am, pilates at 9 am and dance at 10 am) take place in the park as well. the family fun tent provides free for kids on sundays between 10 am and 3 pm. free walking tours take place on sundays, or you may do it yourself with a downloadable tour from the website.