Interesting Engineering on MSN5mon
Human-built 5600-year-old underwater bridge found inside cave stuns scientists
Logically, being so close to the mainland, the first signs of human ... made on the official timeline in recent years. The ...
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Recent Analysis Of An Ancient Human-Made Bridge Discovered Submerged In A Spanish Cave Revealed It's Much Older Than Previously Thought
The bridge was located in Genovesa Cave in Mallorca, a Mediterranean island off the eastern shore of Spain's mainland. It was 25 feet in length and was made of large, heavy blocks of limestone ...