John Pennekamp Coral Reef State Park Grab your scuba diving gear or board one of the glass-bottomed boats for an aquatic adventure at the nation’s first underwater park in the Florida Keys. Gaze at ...

Discover 10 breathtaking images of Earth from space, featuring volcanic eruptions, heart-shaped lakes, shifting dunes, and ...

One of only four green sand beaches in the world, Papakolea sits at the southern tip of Hawaii’s Big Island. The ...

Looking to head out on a national park adventure this May, but aren't sure which parks should be on your itinerary? In this ...

But moonbows are much more rare than rainbows—the natural phenomenon happens only when the moon is very low, the sky is dark, and rain is falling opposite the moon. Check out the biggest unsolved ...