Chicago Things To Do: Designed by famed architecture firm Skidmore, Owings and Merrill, the John Hancock Center rises 100 stories above downtown Chicago. The building is home to offices and many restaurants, but the main attraction is the open-air SkyWalk on the roof.
With views of the city and four surrounding states, the John Hancock Observatory SkyWalk is a popular destination in the city. Other attractions in the building are the world's highest indoor swimming pool and an ice skating rink in the spring.
