Highly recognizable in the skyline for its two antennas, as well as the “x” shaped external supports.  There are a lot of places to take photos of the Hancock Building up and down Michigan Avenue and, from the lakefront bike path.  Even better, visit the observation deck and get great pictures looking down Lake Shore Drive and back at the Loop.

https://en.wikipedia.org/wiki/John_Hancock_Center

https://www.architecture.org/learn/resources/buildings-of-chicago/building/875-n-michigan-ave/