576 meters 176 meters 976 metres 376 meters
1901 1931 1961 1871
Mississippi River Rio Grande Colorado River Missouri River
4th Largest 2nd Largest 5th Largest 3rd Largest
Rend Lake Unity Temple Cahokia Mounds Charles Mound
16.5 million 76.5 million 56.5 milion 36.5 million
Peach State Gem State First State Prairie State
Jon Hancock Center Sears Tower AT & T Corporate Center Aon Center
Lake Erie Lake Superior Lake Michigan Lake Huron
Wabash River Ohio River Duck Creek Illinois River