An additional degree of freedom in cobalt oxides that makes them fascinating is the spin state of the Co ions, which possess six -shall electrons and can form configurations with spins =0, 1, or 2. In the prototypical member of the family, LaCoO, the ground state is believed to be insulating with the spin state =0. However, there has been a great deal of controversy over the last decades about the nature of the excited states and the phases observed at higher temperatures. The authors here approach this long-standing problem by applying ultrahigh magnetic fields reaching 133 Tesla at temperatures ranging from 2 to 120 K. Surprisingly, at magnetic fields above 100 T, they find two novel magnetic phases that are identified as spin-state crystalline states, possibly with some orbital ordering.