The long-running enigma of the mystery monoliths has entered a new chapter this week.
Four years on from the appearance of several mysterious monoliths, another has suddenly shown up on a Welsh hill.
This enigmatic archaeological site in Indonesia has the potential to be the oldest monolithic structure on Earth.
A metallic monolith that appeared in the Democratic Republic of Congo has been torched by a mob.
Despite an art group claiming responsibility, more monoliths have been showing up around the world.
An art group has come forward to claim responsibility for creating the Utah and California monoliths.
The ongoing mystery of the metallic monoliths appearing around the world is showing no signs of slowing down.
A photographer who had been visiting the mysterious monolith claims he witnessed it being taken away.
The mystery of the '2001' monoliths has deepened after another one has appeared half way across the world.
The mysterious monolith found in the Utah desert has now been inexplicably removed by 'an unknown party'.
A real-life version of the monolith from '2001: A Space Odyssey' has shown up in the middle of nowhere.
Archaeologists have discovered a mysterious stone monolith at the bottom of the Mediterranean.
Buzz Aldrin recently hinted at the presence of a 'monolith' on Phobos during an interview, now an image taken from NASA'...