In the Himalayas, the 2021 floods in Uttarakhand, India spark fears of buried Cold War nuclear devices, but scientists traced the disaster to a glacier collapse, revealing the environmental impact of past geopolitical tensions. In Germany, the Tollense Valley's frozen marshlands have preserved evidence of Europe's earliest known battle, dating back to 1250 BC, shedding light on prehistoric warfare. Russia's Dargavs village reveals an eerie medieval necropolis, while Canada's Marble Canyon uncovers ancient worm fossils, offering a window into the complex marine life of the Cambrian period.