Ghost sightings and battles suggest that Pennsylvania's Gettysburg National Military Park is a place of mysterious power.
The fabled chupacabra is linked to various UFO sightings Puerto Rico's El Yunque National Forest.
Unexplained disappearances are linked to a race of superhumans in California's Shasta National Forest.
A trail of clues leads us to believe the random flashes of light at Glacier National Park are of Nazi origin.
UFO sightings suggest that California's Joshua Tree National Park may be ground zero for alien genetic experiments.
Mysterious deaths and violent fireballs haunt Hawaii Volcanoes National Park.
Evil power lives deep in the heart of Florida's Everglades National Park.
Ghosts of a bizarre plane crash haunt Grand Canyon National Park.