Refers to the media franchise established by the "National Geographic Society":[https://en.wikipedia.org/wiki/National_Geographic_Society], an American non-profit scientific and educational organization mainly interested in geography, archaeology, and natural science, the promotion of environmental and historical conservation, and the study of world culture and history. It is known for its recognizable logo, a yellow rectangular portrait frame, which occupies the margins surrounding the front covers of the Society's "epynomous magazines":[https://en.wikipedia.org/wiki/National_Geographic] and also serves as its "TV channel":[https://en.wikipedia.org/wiki/National_Geographic_(TV_channel)] logo.

h4. External links:
* "Official website of the organization":http://www.nationalgeographic.com/
* "Official website of the magazine":http://ngm.nationalgeographic.com/
* "Official website of the TV channel in the US":http://channel.nationalgeographic.com/ (There are also local versions of the channel globally.)
national geographic