On "Stranger Things," it's fairly safe to say that the Upside Down is the source of most of the show's monsters and mayhem. Introduced at the very beginning of the show, the terrifying alternate ...

Stranger Things 4 revealed a lot about Eleven’s past and dropped a big twist about who is the true mastermind behind the Upside Down’s war on humanity. But with only one season left to go, we still ...

Since the beginning of “Stranger Things” way back in 2016, one of the biggest questions that has loomed virtually everything else has been: What is the Upside Down? And with the conclusion of ...

Just what is The Upside Down in Stranger Things‘ world? The truth is that we still don’t know in full. After four seasons of the show, we know how Vecna became a part of The Upside Down and how that ...