File talk:Kheops-Pyramid.jpg

This file has been used in:   (2010-10-17). "Die 10 größten Wunder des Ingenieurwesens". Tech Blog.

This file has been used in: Scott Campbell (2014-04-21). Context matters (in en). cstv.uwaterloo.ca. Retrieved on 2014-04-22. Name ok, no license, "Wikimedia", backlink to Commons