Rivers have served as lifelines for civilizations throughout history, shaping landscapes and cultures across continents. These mighty waterways continue to fascinate researchers and explorers today, ...

Beneath the surface lies the biggest river cave ever discovered, a vast underground system carved by water over millions of ...

Best known for its distinct color, this Texas river extends all the way to Arkansas, full of history, water activities, and ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet Initiative has ...