The End of the Future: The Waning of the High-Tech World (Praeger Studies on the 21st Century) (Paperback) | Hooked
The cathedral builders. Jean Gimpel
Cathedral Building in the Middle Ages Durham World Heritage Site
How did they build cathedrals 1,000 years ago, without a tape measure or heavy equipment? Where did they get all the materials? How did they cut it all, and get it up