Scientists have hypotheses about some of nature's biggest mysteries but are still working on proof. Some beautiful phenomena can't be explained yet.

Off the coast of Yonaguni Island in Japan, a submerged structure has puzzled divers, researchers, and archaeologists since its discovery nearly four decades ago. The monument, hidden beneath the ...

One of the most influential mystery authors in the literary world is English writer Agatha Christie, who wrote numerous mystery novels and short stories in her lifetime. Since then, Christie's work ...