What Made Mexico’s Most Mysterious Beach?

There’s an islet off the Pacific coast of Mexico with a pristine beach drilled into its central core like the hole of a donut. This hidden Eden continues to baffle geologists with its oculus of volcanic stone.

Palmyra Atoll Pictures: Part of the World’s Largest Marine Reserve

Palmyra Atoll, a refuge for seabird breeding colonies and coral reef communities, is part of the Pacific Remote Islands Marine National Monument. The national monument received a big boost this week, when U.S. President Obama announced he was expanding its borders, turning the remote area into the world’s largest marine reserve.

Neanderthals Made Some Of Europe’s Oldest Art

Criss-cross patterns deep in a Gibraltan cave suggest that the species had minds capable of abstract artistic expression. Archaeologists uncovered the engravings in Gorham’s Cave, a site overlooking the Mediterranean Sea.

9 Houses That Prove Your Dream Home Is Also A Green Home

“Green building” is an effort to curb the environmental toll of inefficient homes, and it’s taking hold in the construction sector. Nine architects talk about their stunning projects that are not only sustainable, but beautiful too…