There are plenty of unsolved mysteries in US national parks that prove that even an innocent day hike can quickly turn tragic ...

From baffling disappearances, unsolved murders and cryptic messages, to unexplained phenomena and peculiar legends, these are ...

Here are five unsolved mysteries you can actually visit and ponder over, each offering a doorway into the unexplained. Taos Hum, New Mexico, USA Ever had that strange feeling when you hear ...