Google's Open Heritage project that captures cultural heritage datasets has stressed the "vulnerability and impermanence" of sites, such as the burnt up cathedral in Paris.
18 April marks the International Day for Monuments and Sites also known as World Heritage Day, which Google celebrated by expanding its Open Heritage project.
In collaboration with the non-profit CyArk, the tech giant had produced 3D renderings and virtual tours of historical sites. The Notre Dame Cathedral has never been documented by the pair, but following the fire that significantly damaged the French monument, CyArk released the Mapping Gothic France project, which completed work in 2010.
Open Heritage suggested that new technologies and methods of 3D and digital documentation "hold promise for archival preservation."
"The ability to rapidly and accurately document the world around us is revolutionizing disciplines such as archaeology, biological and earth sciences, digital humanities, and museum studies," the project said in a statement released on 17 April.
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Among historical sites documented in 3d data sets by CyArk and Google are Thomas Jefferson Memorial, the khan of As'ad Pasha al-Azem in Damascus, the Brandenburg Gate in Berlin, Mexico City Metropolitan Cathedral and many others.