These are the texture files that go along with the Sponza and SunTemple scenes included in this repo. The texture files aren't committed due to their large size, so you'll need to download them here if you want to use them. Without these textures the scenes will still load, but they will have default white materials.
Instructions: un-zip file into the root of the repo directory. The files will go into Content/Models/Sponza and Content/Models/SunTemple/Textures.