Smithsonian Magazine on MSN40m
Secret Passageways Recorded in Leonardo da Vinci’s Sketches Discovered Beneath a Medieval Castle in MilanUsing ground-penetrating radar and laser scanners, researchers identified subterranean structures just a few feet below the ...
Live Science on MSN4h
Pamukkale: Turkey's 'cotton castle' of white limestone that inspired an ancient cultThe Pamukkale travertines are limestone slopes and thermal water pools that have attracted visitors since before the days of ...
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