What if Elmo and Cookie Monster found themselves in Hawkins? A mysterious message from the Upside Down brings Sesame Street ...

Eleven accidentally created the Upside Down when she opened the gate in Stranger Things season 1. This happened during her ...

Just when we thought we've cracked the code on everything that was going on in Stranger Things, the Duffer Brothers and the ...

"Stranger Things" Season 5, Volume 2 finally reveals the origins of the Upside Down. Here’s how the wormhole works, what the ...