I attach some images of Chicago, rather arbitrarily selected from a couple of days wandering round with the AIA Guide to Chicago in hand or back in the hotel for reference.

The Newberry Library by Henry Ives Cobb, which is only half as large as it was intended to be, so is truncated at the back:-

The John Hancock Center by Skidmore, Owing and Merrill, muscular and black:-

Frank Gehry’s music pavilion in the Millennium Park:-

The Aon Center, originally the Standard Oil Building, just north of the park, by Edward Durrell Stone, which the AIA Guide describes as banal:-

Anish Kapoor’s Cloud Gate, which was closed off in case of rioting:-

The Carbide & Carbon Building by Burnham Bros. in 1929:-

And, lastly, one of the stations on the El:-