One of the world’s biggest archaeological rescue operations was successfully concluded 50 years ago after a massive ancient Egyptian temple complex was dismantled and hoisted to higher ground to prevent its flooding by the damming of the Nile River.
The groundbreaking Unesco-led project to relocate around 20 gigantic monuments in Abu Simbel complex was officially concluded on September 22, 1968, after an eight-year international effort involving hundreds of workers.
Here is a look back at the remarkable feat:
The two Abu Simbel temples – named after their village location – were carved out of cliffs overlooking the Nile in the time of Ramses II, the ruler of Egypt from 1298 to 1235 BC.
The larger has four colossal statues of a seated Ramses II at the entrance, through which there are succession of rooms and galleries stretching back 63 metres.
The temples are among the jewels of the ancient Nubia region that extended down the Nile from Aswan in southern Egypt into present-day Sudan.
In the 1950s, Egypt’s president Gamal Abdel Nasser launched a project to dam the mighty Nile at Aswan in order to generate electricity for the region, increase cultivable land and reduce flooding.
The construction would create a huge artificial lake behind the dam wall, requiring the resettlement of tens of thousands of indigenous Nubians from villages in the area and also threatening monuments.
Pharaonic and Greco-Roman temples including those of Abu Simbel risked being submerged.
In 1960, Unesco, the UN organisation dedicated to preservation of culture, launched an appeal to save the temples. Several projects were put on the table but, too costly, they were quickly put aside.
Eventually a Swedish-Egyptian proposal was selected.

Work was launched on April 1, 1964, with the construction of a temporary dam to protect the site and the excavation of the cliff around the two temples.
The Abu Simbel temples were cut into 1,035 blocks each weighing between 20 and 30 tonnes. The four seated statues of Ramses II and six others of the king standing up were sawn into pieces.
Jacks, cranes and powerful winches hoisted the enormous stone weights to the top ofthe cliff, 64 metres from their original location.
There the blocks were reassembled to reconstitute the two temples exactly as they were.
Artificial hills were then created around the site as a protective barrier against the river.

For four years about 800 labourers and 100 technicians worked in the desert under a red-hot sun to complete the project, which cost $36 millions.
The original site is today completely submerged by Lake Nasser. An operation – also part of Unesco’s Nubia Campaign – to save the temple complex on Philae island, around dozen kilometres upstream from Aswan, started in 1972.