The Toyota 4x4 bounced across a roadless, barren plain. Behind, a cloud of pale dust shimmered in the sun. Ahead, a formation ...

An unforgettable stretch of roadway hugs the edge of the continent where cliffs rise sharply above the Pacific and waves ...

The Driftless Area Scenic Byway cuts a mesmerizing 144-mile path through a region that ancient glaciers apparently found too ...

Mysterious micro-burrows in desert marble and limestone were probably made by microbes that lived millions of years ago. Exactly what kind of microbes bored into the rock remains unknown, as does ...