There are reported sightings of some, while others are just the sharp-fanged subjects of fireside folklore. Here, there be some of America's monsters. Have you seen any of them? Do you believe?

Thunderbirds are great spirits said to control the weather, according Native American myth. And a few have been spotted in ...

Whether it’s a Bigfoot sighting or an encounter with the chilling Wendigo of northern Minnesota, American mythology teems ...