“There’s a waterfall where nobody knows where the water goes. Minnesota’s Devil’s Kettle Falls dumps into a giant pothole with no seeable exit. Researchers have poured dye, ping-pong b—s, even logs into it, then watched the lake for any sign of them.”

“There are ‘sailing stones’ that move about on their own, without any human or animal intervention, in Death Valley National Park.”

“There is a phenomenon in Norway called ‘The Hessdalen Lights’ which refers to a valley where on a regular basis large orbs of light fly through the sky. Universities and Governments have studied it for decades and have also documented it heavily.”

“TIL of the flammable ice bubbles of Lake Abraham in Canada, which can be popped and ignited creating enormous bursts of fire.”

“There is a mysterious sound in New Mexico called the ‘Taos Hum’’. Only 2% of the population can hear it, and no one knows where the sound comes from.”

“There is a 1500km band of land in Namibia covered in unexplained ‘Fairy Circles’ that appear to grow and also die. Scientists have studied the area for over 30 years and still do not know their cause.”

“There is a waterfall in England that turns things into stone. The water is so rich in mineral content that items placed underneath it develop a stony exterior.”

Mexico’s Playa Del Amor is a hidden beach in that exists in a “hole” in one of the Marieta Islands. While experts aren’t entirely sure how this marvel came to be, volcanic explosions and bomb tests have both emerged as possible explanations.

“There is a lake on an island off the coast of Western Australia called Lake Hillier. The few micro organisms that live in it use carotenoids to protect themselves from the high salt concentration and this has made the lake a pink colour.”

“TIL of an atmospheric phenomenon called Catatumbo lightning in which 140-160 nights a year, 10 hours per day, lightning storms strike over the Catatumbo River in Venezuela.”

“The Darvaza gas crater, AKA the Gates of H— [is] a crater in Turkmenistan that has been on fire since the ‘80s. Engineers wanted to prevent the emission of poisonous gases by igniting them, but reportedly underestimated how much there was.”

“Moonbows or lunar rainbows are rare natural atmospheric phenomena that occur when the Moon's light is reflected and refracted off water droplets in the air.”

“There exists a rare phenomenon called ‘sun pillars,’ which are vertical shafts of light extending upward from the sun during sunrise or sunset. These optical illusions are caused by the reflection and refraction of sunlight by ice crystals in the atmosphere.”

While often associated with the color green, a swamp in Virginia’s First Landing State Park once turned into a giant rainbow. “The rainbow sheens found as a thin film on top of pooled water in swamps and marshes are the result of natural oils released by decaying vegetation or the biological processes of anaerobic bacteria reducing iron in soil,” Florida Swamp Walker Jeff Ripple explained to BBC News back in 2018, noting that “movement by sheet flow, current or wind disturbance would destroy the fragile rainbow film.”

“The 'Blood Falls' in Antarctica is a bright red waterfall that flows from the Taylor Glacier into Lake Bonney. Despite its eerie appearance, the red color is actually caused by iron oxide, which gives the water its rust-like hue. The water is also extremely salty, preventing it being frozen.”

“For thousands of years, Syilx people and other Canadian First Nations have been visiting a sacred medicine lake with 365 naturally formed “spots”. A non-Indigenous man once wanted to convert it into a spa but First Nations took back possession of the lake and permission is required to visit.”

“Lake Baikal, located in Siberia is the largest fresh water body in the world, and its pure water freezes into turquoise ice.”

“Some sand dunes emit a ‘hum,’ as loud as 105 decibels, due to the synchronization of the falling sand grains.”

“TIL about Skyquakes, a mysterious phenomenon where people hear loud booming noises but there is no apparent source. Theories include gas escaping the earth, meteoric sonic booms, volcanic eruptions, and you guessed it... earthquakes.”

“Every year in the Mekong River in Thailand, hundreds of fireballs erupt from the surface of the water, and nobody knows what causes them. locals believe a mythical serpent called Naga spits fire from the water. The event is known as Naga fireballs.”