Reservoir re-housed, historical artifacts moved or rare environments relocated. Examples include the temples of Abu Simbel (which were moved before the construction of the Aswan Dam to create Lake Nasser from the Nile in Egypt), the relocation of the village of Capel Celyn during the construction of Llyn Celyn, and the relocation of Borgo San Pietro of Petrella Salto during the construction of Lake Salto. Construction of a reservoir in a valley will usually need the river to be diverted during part of the build, often through a temporary tunnel or by-pass channel. In hilly regions, reservoirs are often constructed by
Research Centre in Cairo, Polish Centre of Mediterranean Archaeology University of Warsaw about the Polish discoveries at Faras. Even as the first season of excavation at Faras was in full swing, Michałowski was approached by the Egyptian authorities to take on the task of completing the restoration of the Upper Terrace of the Temple of Hatshepsut in Luxor. The work in Deir el-Bahari began in 1961. In 1963, Michałowski headed the international committee of experts created by the Egyptian government to rescue the rock temples of Abu Simbel. The Polish Centre in Cairo was named after its founder by the Senate of the University of Warsaw on 21 December 1983. Its establishment