PBS
Pbs: Building Big: Skyscrapers
Information about the basics of skyscrapers, with profiles of nine big-building wonders. Extras include a loads lab, which illustrates how and why skyscrapers stand up and keep standing up, and interviews with builders, engineers, and...
Curated OER
John Hancock Building in Chicago
Using the John Hancock Center as an example, ArchKIDecture explains how a steel skeleton gives a building strength and permanence.
archKIDecture
Arch Ki Decture: Building With Steel and Glass
Using the John Hancock Center as an example, ArchKIDecture explains how a steel skeleton gives a building strength and permanence.