In 1930, the 22M-pound Indiana Bell building was rotated 90 degrees

Re:In 1930, the 22M-pound Indiana Bell building was rotated ... by kube-system on Wednesday April 19, 2023 @11:39AM (#35629553)

I'm not sure about the construction of this building in particular -- but generally speaking you support the building from an alternative location under it, then you can lift it off the foundation.