The baffling sandstone boulder of the Al Naslaa rock formation sits in Saudi Arabia’s arid Tayma oasis and has, not surprisingly, become a popular photo opportunity, along with being a hot topic of debate on the internet.
It is approximately 30ft (9m) tall and 25ft (7.6m) wide.
The other side has a very smooth surface and has been embellished with a petroglyph, a rock carving made using a chisel and a hammerstone of what appears to be a man and a horse.
A theory suggests ancient civilizations were more advanced than previously thought.
One YouTube video speculates that the formation is evidence of early ‘high technology’.
Another internet user compared the formation to the pyramids of ancient Egypt, which were constructed some 4,500 years ago.
Reddit User NicholasPileggi claimed the split was carved in ‘the same way they cut the blocks for the pyramids.
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