Egyptian Revival architecture in the British Isles and John Hawkshaw, based on an earlier design of 1831 by Isambard Kingdom Brunel, and contributed to by Sarah Guppy. Egyptian Revival architecture made a re-appearance in the interwar years between 1919 and 1939 and was used mainly for the decoration of factory buildings and commercial buildings such as cinemas and garages. This revival of interest in the style is attributed to the discovery of Tutankhamun's tomb by Howard Carter in 1922. Greater London House is a striking example of early 20th-century Egyptian Revival architecture in Camden Town, London, inspired by Tutankhamun's tomb. The building was erected in 1926–28 by
Valley of the Kings lecture inside the tombs, and visitors are expected to proceed quietly and in single file through the tombs. This is to minimize time in the tombs and prevent the crowds from damaging the surfaces of the decoration. In 1997, 58 tourists and four Egyptians were massacred at nearby Deir el-Bahri by Islamist militants from Al-Gama'a al-Islamiyya. This led to an overall drop in tourism in the area. On most days of the week an average of 4,000 to 5,000 tourists visit the main valley. The West Valley is much less visited, as there is only one tomb that is open