John Hancock Observatory

Not quite as tall as the Willis Tower, the John Hancock Observatory is still very high at 344m (1,127ft). It is usually less crowded and gives a more scenic view of the city's shoreline. There is an excellent observation gallery on the 94th floor, which also has the outside Skywalk. One floor up is the Signature Room, a good spot to sip a cocktail while enjoying the sunset views to the west and the panorama of Lake Michigan to the east. Architecturally, the building is striking because of its massive X-shaped cross-braces.