Numerous massive projects, such as placing a dam across the straits of Gibraltar, converting the Sahara into an irrigated plain, a Jordan Valley project, all undone, plus some that have become reality, such as the Channel Tunnel.
This book inhabits that mid-region between science fact and science fiction. It is a compendium of ideas, half-baked and less, from engineers the world over during the early 20th Century and before.
