Algae Swirls Across a South African Reservoir
Vivid green blooms form, drift, and fade in Hartbeespoortdam reservoir over the course of a year.
Reaching the Precipice in Angola
The Huíla plateau, bounded by dramatic cliffs and chasms, stands above the arid coastal plains in the country’s southwest.
An Amphitheater of Rock at Cedar Breaks
The colorful formations found in this bowl-shaped escarpment in southwestern Utah are the centerpiece of Cedar Breaks National Monument.