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-1 votes
3 answers
161 views

What are some examples that show medieval stone construction on top of older foundations?

Are there any more blatant examples that show new construction or repairs on older construction? Buildings like castles or walls With visible differences between the two construction eras? For example ...
aah123's user avatar
  • 71
2 votes
2 answers
194 views

What are good predictors of the construction year of residential buildings? [closed]

I follow a suggestion from a question on meta stackexchange to ask about actual, physical architecture here. I hope that is acceptable. I am interested in the information and features which a ...
Scrox's user avatar
  • 21
1 vote
2 answers
948 views

Did anyone ever try to beat the Great Wall of China by digging secret tunnels under it?

I know the Great Wall was useful to defend against enemies on land, but is there any record that people ever tried to beat the Great Wall by digging tunnels under it? If not, why didn't it happen?
Gstestso's user avatar
  • 135
31 votes
4 answers
14k views

Why does the Great Wall of China follow such a bendy route?

Why does the path of the Great Wall of China bend back and forth so much? Naïvely, it would have taken less material and guards to defend if it had taken a straighter path, so there must have been ...
BenRW's user avatar
  • 543