There´s their online site. You can check the major articles for every edition and in the diferent countrys.
If you have the maganize, great... I like them, if not, you can search the web.
For example, from the major site (http://www.nationalgeographic.com/) for Feb:
"Features
Keillor Bus
Garrison Keillor’s Memory Map
He is guided by memories of boyhood bike rides, the ever present Mississippi, and the undeniable power of rhubarb.
Il Duomo
Brunelleschi’s Dome
How did a hot-tempered goldsmith create the miraculous edifice in Florence?
Yukon
Gold Fever in the Yukon
Prospectors invade Canada’s great wilderness.
Mela
Karma of the Crowd
Millions of pilgrims flock to a Hindu gathering in India—and find inner peace in numbers.
Moment Bear
The Moment: At Last, a Bear
Photographer Paul Nicklen waited for days to capture a grizzly close-up."
When you clik on the features, it will open a new window with the info for that article, and the needed location.