A Utah monolith enchanted millions and then it was gone, leaving mysteries behind

For many following the story of the monolith, crucial questions remain unanswered: who made it? What was it for?

In a year of uncertainty and peril, one three-sided mystery metal structure provided a glinting moment of distraction, or even hope - and then it was gone.

Before the public had moved on from the monolith, the monolith had moved on from us.