The February Explorers Club read the book, Someone Builds a Dream, by Lisa Wheeler. Afterwards, they worked together to build towers with toothpicks and marshmallows.
Other books about structural engineering:
Cronn-Mills, Kirstin. Collapse! The Science of Structural Engineering Failures.
Dickman, Nancy. My STEM Day: Engineering.
Haslam, Andrew. Make It Work! Building.
Jefferis, David. Extreme Structures.