NORMAN architecture - Nave vaults, Durham Cathedral, England (begun 1093 and largely completed within 40 years) #architecture #cathedral (NB: at the end is the Quire - Original east end was replaced by this Gothic choir, 1242-c. 1280. Vault height about 73'.)
Cologne Cathedral, Germany. Crazy to think that when this was built, there was no CAD, no modern construction equipment. Everything was done by hand, and by people. If that doesn't make you appreciate classical/gothic architecture, I don't know what will.