Get perspectives on Chicago's most renowned structures, just as insider data from a specialist guide, on this design-centered journey. See every one of the main structures on one visit, a complicated to-achieve task by walking. View the horizon from the Chicago River while paying attention to live analysis. Snap photographs of the Willis (Sears) Tower, Old Post Office, 360 Chicago Observation Deck, Wrigley Building, and the sky is the limit from there.