A huge fizzing fireball is filmed crashing through a farmer's field; a forest that seems to be breathing; a mysterious horizontal cloud puzzles Japanese airplane passengers.
A mysterious glowing green entity is seen in Australia's nighttime sky; footage of a twisting fire worm may confirm a local legend about a cave-dwelling super serpent.
A Swiss mountain seems to be squirting out its insides; a moon with a halo appears and seems to trigger bizarre human behavior; glowing green geese are filmed flying over Canada.
A weird white dome appears over a valley that is famous for UFO sightings; engineers try to work out why a huge bridge collapses on a clear blue day; why square waves in the sea are a sign to get out of the water.
Strange cloud rings filmed in the sky over Siberia may be linked to unexplained circles on the ice of a nearby lake; a lighthouse wobbles as it's battered by a storm; spiders travel hundreds of miles through the air.
A giant ice stack on a remote lake spouts a strange vapor, dazzling jeweled objects litter a dank cave floor and a man's shout causes a lake to bizarrely react with thousands of ripples.
Threatening blue lights bombard a famous resort town, evoking the apocalypse, a nuclear meltdown could be behind an ominous blazing beam of light and supersized, underground crystals appear out of this world.
Huge sand dunes bellow sinister sounds as loud as a jackhammer; a churning mud pot mysteriously goes on a rampage, destroying infrastructure; and a river, linked to a national tragedy, mysteriously vanishes.
In the Arctic Circle eerie multi-colored lights move across the night sky, highway streetlights inexplicably start swaying wildly, threatening motorists and a perfectly circular beach and ocean appear in dense forest.
On the flanks of a volcano, lava appears that astonishingly burns bright blue; a creepy orange entity pulses threateningly at the bottom of a partially frozen pond; a huge, sinister dark blob invades a popular beach.
A bright blue object streaks across the night sky, evoking a terrifying legend; a mountain defies belief as it collapses like a deck of cards; a pristine lake gets coated in a strange layer of grey gunk.
A bizarre multi-colored smoking mound seems to belong to another planet; a tranquil, frozen lake emits an unnatural moaning noise; deckhands are stunned to see the ocean around their container ship smoking uncontrollably.
A huge black ring hovers silently over remote prairie land; a perfectly paved yellow highway exists at the bottom of deep ocean; a hiker appears to miraculously levitate above a rocky landscape.
A child is carried away by a wave out of nowhere, a hiker in a remote desert is shocked by a living, slithering ooze, and a plane has a terrifying close encounter with an ember-spitting fire cloud 20,000 feet above Earth.
A bizarre gelatinous orb confronts scuba divers. What is the cause of a powerful blast that levels a city? And an ominous shape, dubbed the Evil Eye by witnesses, looms large over a city.
A giant mound of muck emerges from a field, fuelling fears of a subterranean disaster. A weird substance morphs into a horde of mystery arachnids. And a shape-shifting black mass appears over a city, terrifying onlookers.
The ground beneath a Scottish forest comes alive. A bizarre ball of electric blue light streaks through the air above a suburban Ohio town. And thousands of strange, worm-like creatures fall from the sky.
Cameras around the globe capture unexplainable weather phenomena, from a rainfall of blood to clouds that can kill.
Cameras around the globe capture unexplainable weather phenomena, from a rainfall of blood to clouds that can kill.
Cameras around the globe capture unexplainable weather phenomena, from a rainfall of blood to clouds that can kill.