Dymaxion House, 1929 (above) by Buckminister Fuller, an architectural visionary who's geodesic designs offered practical solutions for an efficient and sustainable future.
The staggering array of designs and inventions - many of which were to be realised, were far ahead of their time in terms of ecological awareness, for example integrating inspired features such as water recycling systems.
Anon.
One of Archigram studio most famous visions from the 1960s is for a city that perambulates across the countryside ... they meant for their cities of the future to be monstrous walking machines, strolling from one part of the world to the other.
Sliding pavements - and the Depth-scraper! 1931