Egypt's oldest pyramid has been saved from collapse by giant airbags which have been used to prop up the ceilings.
The 4,700-year-old building has been stabilised so engineers can carry out permanent repairs.
The giant structure was built as a burial place for Pharaoh Djoser, a warrior who reigned in the third dynasty for 19 years but has been damaged in an earthquake.
The British team - who helped repair Windsor Castle after it was damaged by fire in 1993 - used technology first developed to aid in the safer disposal of improvised explosive devices in Afghanistan.
Engineering boss Peter James said: 'The entire structure could be destroyed at any point due to the damage caused by the earthquake.
'But we have stabilised the roof with these inflatable airbags and we will soon start repairing this magnificent building.'