Flip through some of the most compelling National Geographic covers from the last 50 years. See every issue since 1888 cover-to-cover with Nat Geo PLUS, subscribing members’ all-access pass to ...

This story appears in the February 2012 issue of National Geographic magazine ... which include some of the most famous national parks and monuments in the United States: Grand Canyon, Zion ...

This story appears in the August 2009 issue of National Geographic magazine ... and not just any volcano. The oldest, most famous national park in the United States sits squarely atop one of ...