The Future Circular Collider (FCC) Study aims at developing a large-scale accelerator research infrastructure based on a 100 km tunnel. While the ultimate goal is a proton-proton collider, with 100 TeV centre-of-mass collision energy and unprecedented direct discovery potential. Also ion-ion and ion-proton collisions are possible. The initial project stage could consist of an electron-positron collider.
The talk describes the status of the hadron collider design.