This is the contrast of the old and the new; the Chicago Water Tower and 875 North Michigan Avenue (formerly, The John Hancock Building).
In this picture you see the Chicago Water Tower in the foreground and 875 North Michigan Avenue in the background.
The Chicago Water Tower, completed in 1869, is one of the very few structures to survive the Great Chicago Fire of 1871. 875 North Michigan Avenue, complete 100 years later in 1969, is among the tallest buildings in Chicago and in the world. Another distinct contrast is the Chicago Water Tower is made from yellow Joliet limestone, a very popular building material in that day, while 875 North Michigan Avenue, foundationally, it made of steel.
A final contrast is in the picture itself which offers a hint of scale between the Chicago Water Tower, topping off at 182.5 feet, and 875 North Michigan Avenue’s height of 1,128 feet to the roof, 1,500 feet to the tip of the towers.