Roopkund Lake, also known as the ‘Skeleton Lake’ in India, hides one of the creepiest mysteries in the world. In 1910, hikers discovered hundreds of human skeletons scattered around this remote Himalayan lake, perfectly preserved in the icy waters. Scientists believe a sudden hailstorm may have killed them centuries ago, but questions remain — why were so many people traveling together, and what was their purpose? The mystery of Roopkund Lake continues to intrigue adventurers and researchers alike.