Aluminium has a key role in sustaining human ecology. This can be readily demonstrated by exemplary case study architecture from throughout the globe. The advantages of aluminium as a component of architecture include durability, elegance, and economy and yet it is infinitely recyclable. To articulate why architects and specifiers should consider aluminium to be a sustainable material, the International Aluminium Institute [IAI] launched The Future Builds on Aluminium website in 2009. This paper reviews key case studies from this website and why they were selected by the author.