One of the biggest holes in Brisbane's history is about to be dug in George Street.

From the huge excavation pit will emerge Brisbane’s new Queens Wharf casino, entertainment and resort complex, being built by the Destination Brisbane Consortium.

Brisbane's biggest excavation, covering two city blocks, begins after Christmas for the new Queens Wharf resort.

The excavation pit will be 26 metres deep, descending eight storeys into the earth and be Brisbane's biggest hole since the Myer Centre was built.