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Every month, National Geographic staff photographer Mark Thiessen answers your photography questions—and spills the secrets behind the shots.
Take a look back through images from the March 1908 National Geographic article on the survey of Alaska.
Explore almost two centuries of photography, from the first permanent image, through color techniques and innovative subject matter, to today's digital breakthroughs.
Find unusual vacation spots and journey through Mexico.
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Check the weather forecast in the local media as soon as you arrive somewhere so you can make plans for sunny, cloudy, or rainy days.
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