It’s one of the 10 most popular national parks in the United States. Visitors are drawn to the vastness and variety of “America’s best idea.” From sea to shining sea (as well as in the ...

Think our national parks are only good for hiking and scenic drives? Think again, says our national parks columnist.

From waterfalls to deep plunge pools, here the best natural pools for cooling off this summer in national parks.

In any discussion about climate change, renewable energy usually tops the list of changes the world can implement to stave off the worst effects of rising temperatures. That's because renewable ...

The Continental Army thus became America's first national institution ... Congress became known collectively as the Army of the United States, instead of the Army of the United Colonies.