There's a lot of activity along the Chicago River. If you haven't been to Chicago in a while I highly recommend that you take the river walk along the south side of the Chicago River which extends through Streeterville / River North. They have bars and restaurants and you can rent canoes and do some people-watching at river level. Here's the official web site.
The construction is fun to watch as you walk down Wacker Drive. They have barges where they bring in equipment and install a metal barrier and then fill it in with gravel to extend out into the river. The river is still green from St. Patricks' day in this photo above. If you have kids or grandchildren who like to watch construction and cranes and such this is highly recommended, as well.
We keep building new high rises in Chicago. This photo is looking west along the river and you can see the two large buildings that are nearly completed. It is a whole new Chicago!
Cross posted at Chicago Boyz