《地下奇观:神秘洞穴的探险之旅》全国默哀3分钟
作者:张晓明, 发布时间:2026-02-14 15:42:07
Throughout this season of UNDERGROUND MARVELS, historians, engineers, and experts reveal underground structures that seem to defy human imagination, from Southwest England to Moldova and beyond. In South Dakota, a decommissioned military bunker lies abandoned 200-feet below the ground. Now, 50 years later, how has this massive silo been repurposed for a new generation? In Exete...
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