From Egyptian encounters in the Grand Canyon to Chupacabra sightings in a Puerto Rican Rainforest, join us as we take you on a journey to explore the greatest mysteries of America's national parks.
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A secret underground Nazi base may be the reason for UFO sightings inMontana's Glacier National Park. It may also be the final hideout for Adolf Hitler himself.
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The fabled Chupacabra in Puerto Rico's El Yunque National Forest may be linked to UFO sightings and a secret US government research facility in the area.