The use of technology has become vital in the documentation and conservation of heritage, especially in difficult or urgent circumstances. After many landmarks of the historic city of Palmyra were destroyed during Syria's war in 2015, conservators built three-dimensional digital models of the destroyed city to aid its future reconstruction. The destruction of the Buddhas of Bamiyan in Afghanistan in 2001 with very little prior documentation prompted action in the documentation of vulnerable monuments, such as the establishment of CyArk. More recently, detailed digital surveys and a heritage BIM model were essential in the restoration of Notre-Dame Cathedral in Paris after it was devastated by fire in 2019.
