TeV). It is housed in the 27.6 km tunnel which formerly housed the Large Electron Positron (LEP) collider. The LHC will also accelerate heavy ions (such as lead) up to an energy of 1.15 PeV upon collision. As of 2025, it is considered the largest and most powerful particle colldier.

The largest device of this type seriously proposed was the Superconducting Super Collider (SSC), which was