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Published Dec 2, 2025
The ancient walls, ramparts, and ditches that wind through this Nigerian city are the longest known earthworks of the pre-mechanical era.
Published Dec 1, 2025
Over millions of years, water has sculpted limestone in northern Vietnam into an extraordinary karst landscape full of towers, cones, caves, and subterranean waterways.
Published Nov 26, 2025
In southeastern Libya, Jabal Arkanū’s concentric rock rings stand as relics of past geologic forces that churned beneath the desert.
Published Nov 28, 2025
Hurricane Melissa left the island nation’s forests brown and battered, but they won’t stay that way for long.
Published Nov 25, 2025
