Work of an artist? Aliens? Random YouTube pranksters? As people craved an origin story, copycat monoliths started popping up across the world. Few answers followed. “We see a lot of weird things ...

The monolith is basically a 3 m (9.8 ft)-tall pillar made of metal sheets riveted into a triangular prism, eerily reminiscent of the monoliths featured in 2001: A Space Odyssey, an iconic 1968 ...