Deep in a remote forest lies an immensely large, incredibly symmetrical block of limestone.
Nobody knows exactly where the mysterious structure came from or if humans had any involvement in its creation. And, only three photographs exist online to prove it isn't a myth.
After learning about the monumental structure's existence, a man, who goes by his YouTube name thePOVchannel, said he couldn't stop wondering if it was truly a perfect cube like pictures would suggest and what else might be out there.
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So he joined forces with fellow explorer Desert Drifter, packed his bags and devised a strategy on how to climb to the top of the gargantuan stone block and discover its secrets.
"What we found went far deeper than a strangely shaped rock," the YouTuber said. "It is a mystery that extends beneath Earth and far back into history."
Upon their arrival to the base of the structure, the duo were in awe of its immense size. They then set up their climbing equipment and traversed the 'epic route' to the top.
"Wow, look at this thing," he said as he stood looking at the surrounding trees.
"This side of the cube and the opposite side of the cube have a very rough sort of unrefined look but when you get to the top here, it's pretty darn smooth."
The men then measured just how big the block of limestone was, with the top measuring an impressive 50 ft by 42 ft by 54 ft by 45 ft - not a perfect cube, but not too far off either.
While there remain no solid answers as to how it came to be, thePOVchannel gave his best guess, theorising that it had fallen from a cliff face above.
"Using Google Earth before this trip, I had spotted this gap in the cliffs and a path of destruction from above," he explained. "Clearly, it had rolled down these cliffs in what must have been an incredibly catastrophic event before coming to rest at the bottom.
"Something about the way that it came to rest at the bottom is so truly remarkable it almost seems intentional... Every corner of this cube is pointing in every one of the four cardinal directions almost perfectly."
It almost seemed as though humans must have played a role in its creation.
But, that revelation paled in comparison to what he discovered while looking back at drone footage from the trip.
"It was only a month later after having looked at these shots countless times did I find a shot that I hadn't looked at and my mind was blown. There was something off about the corner.
"We had been so fixated on the appearance of a square at the top of the block that we had missed that the northeastern corner was missing, meaning at one point in the past, the block would have been far more symmetrical like a perfect cube."
He concluded by saying: "When I first saw this object online, I came up with this theory that monoliths are a combination of natural and man-made.
"Perhaps nature did most of the work when it comes to sculpting and shaping the incredibly huge blocks. But what if humans found those blocks and decided to continue shaping and enhancing the symmetry, creating what ultimately looks like a perfect geometrically shaped object?"