Kaiserburg Nürnberg深井建于14世纪并被直接刻入固体岩石上,这口井深约128.7米. 它确保了中世纪围攻期间城堡的安全供水. 你知道吗? 🎓
Kaiserburg Nürnberg深井建于14世纪并被直接刻入固体岩石上,这口井深约128.7米. 它确保了中世纪围攻期间城堡的安全供水. 你知道吗? 🎓
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