It doesn’t exist.
From Multiverse-75.com:
GUNTHER MANN
CEO / Founder
The founder of Multiverse was a project manager at CERN’s Superconducting Super Collider project in 1998, giving him a front row seat to the future.
So the Superconducting Super Collider was not a CERN project. It was a U.S. Department of Energy project in Texas that was shut down in 1993 (although Gunthers profile says he was project manager in 1998) and was never used.
https://en.wikipedia.org/wiki/Superconducting_Super_Collider