In 1964, French photographer Robert Serrec spotted and took a quick picture of what resembles a giant snake-like creature resting on the sea floor off the coast of Queensland, Australia. While some have offered the idea that it’s a giant tarp, no credible explanation has ever been found for this bizarre photo.

Since the 1940s (and possibly earlier) there has been a strange light phenomenon observed in the Hessdalen Valley, Norway. The spectacle has a form of white or yellow light of unknown origin standing or floating about ground level. Between 1981-1984, the lights were observed up to 20x per week, but have drastically reduced in frequency since then, only appearing about 10-20 times per year. Despite ongoing research and numerous hypothesis, there has yet to be a convincing explanation.

In 2000, two photographs said to be of a ‘Skunk Ape’ were taken by an anonymous woman and mailed to the Sarasota County, Florida, Sheriff’s Department. The photographs were accompanied by a letter from the woman in which she claims to have photographed an ape in her backyard. People claim that it’s a black bear, but it doesn’t share a resemblance.

As most family’s would, the Cooper’s moved into their new home in Texas and wanted to take a photograph of the family sitting together. However, as the photo was taken, a body appears to be falling from the ceiling. As further investigation has brought no plausible explanation, there are many speculations as to what is happening.

Nearly all human civilizations have legends of giants, men standing many feet taller than the average with titanic strength. But no fossil evidence has ever been found of one – unless you count the disturbing photographs taken by a man named Gregor Sporri in 1985. On a trip to Egypt, Sporri met an old grave robber who was in possession of a mummified finger measuring 15 inches long – one that would have had to come from a man at least 12 feet tall. Nobody’s ever been able to explain or debunk the pictures he took.

On May 20, 1967, Stefan Michalak was in the woods near Falcon Lake, Manitoba, Canada when he saw two cigar shaped UFOs land close by. When a door on one of the crafts opened, Michalak heard voices, and then tried to communicate with the beings inside. He approached the door of the craft, but couldn’t make out anything inside except for what he described to be a “maze of lights.” Suddenly, the aircraft’s door closed, and the object began to rise. It then expelled some sort of hot air at Michalak through a grid-like vent that caused his shirt to erupt in flames. At a local hospital, doctors were puzzled by the grided burn pattern all across Michalak’s chest, which you can see in the photo above.

Jim Templeton took this photo of his daughter while they were out for the day. At the time of the photo, Templeton didn’t notice anything strange in the marsh area where they were. However, after the film was developed, he noticed what appeared to be a spaceman standing right behind his daughter. There was no one else around when the photo was taken, and Kodak even weighed in, saying that the film was not altered in any way.

This image was taken by Apollo 17 in December of 1972, during its flight to the moon. NASA listed this image as ‘blank’, but after touching the photo up you can see it’s anything but. By turning up the contrast, a pyramidal structure is revealed. NASA has not provided a statement as of today on the issue.

This is one of the most famous unexplained images of all time. While the focus of the picture is on Mary, something creepy hovers above her left shoulder. There’s an object that appears to be some sort of UFO hovering above the cliffs. Just below it you can see a man and his dog looking up at the saucer.