1-
Circle Interchange, Chicago - Read about it
2-
Brooklyn Bridge, New York - Read about it
3-
Canal Lock, New Orleans - Read about it
4-
Water System, Atlanta - Read about it
5-
Alaskan Way Viaduct, Seattle - Read about it
6-
Lake Okeechobee, Florida - Read about it
7-
Dover Bridge, Bonner County, Idaho - Read about it
8-
Wolf Creek Dam, Kentucky - Read about it
9-
Sacramento River Levees, California - Read about it
10-
O’Hare International Airport, Chicago - Read about it