Overview
Who Made These Giant Desert Figures... and Why?
Who made this mysterious collection of rock paintings carved into the earth?
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Overview
How a Mind-Blowing World of Ice Gets Made
It’s one long mile of towering ice cliffs and it’s all human-made. How do they build it?
Overview
Unlocking the Mysteries of Autumn Leaves
What causes that brilliant fall color show that people adore?
Overview
How the Blue Ridge Mountains (Almost) Lost Their Blue
The hazy blue was disappearing from the horizon, but it wasn’t just the trees' fault.
Overview
Climbers’ Paradise is the Last Refuge for an Ancient Species
Red River Gorge is a haven for rare species and a place of many surprises.