Locals who live near to the Well of Barhout often don't go anywhere near it, as it is thought to be a place of eternal bad luck.
Some also believe that the souls of the dead can be taken there for torture.
Either way, it's a massive hole in the floor right in the middle of the desert, and a cave exploration team from neighbouring Oman decided they were going down there.
At the bottom, they discovered all sorts, including weird green cave pearls, and the aforementioned mass of reptiles.
Located in the eastern province of Al-Mahra, the hole is 100 feet wide and drops down 370 feet in total.
It is thought to be millions of years old, and the rumours around it include strange odours, as well as the damned and 'apostates' - or non-believers - being sent there as an afterlife.
Great, let's head on down there then.
The Omani explorers, led by geology professor Mohammed al-Kindi, reported back after going down there, telling the world about the snakes that dwell at the bottom.
He said: "There were snakes, but they won't bother you unless you bother them.
"Some say it is where apostates and nonbelievers are tortured after death. Others believe that their heads would be severed once they're down there."
Whilst they were down there, they did carry out some actual scientific work, taking samples away to test and figure out more about life at the bottom of the desert hole.
The professor, from the German University of Technology in Oman, said: "We collected samples of water, rocks, soil and some dead animals but have yet to have them analysed."
"We noticed strange things inside. We also smelled something strange...It's a mysterious situation."
Still, the images they brought back are fascinating to look at.
The images show the sedimentary rock layers that have formed over the lifespan of the cave, as well as the light that floods in from the entrance at the top of the page and creates an incredible and ethereal effect on the walls.
Once they've processed the full finding of their journey into the 'well of hell', they'll publish a full report.
Featured Image Credit: Newsflash