Fossilized footprints, preserved in gypsum mud that hardened over time, are estimated to be 23,000-21,000 years old. NPS / Alamy Ancient human footprints, preserved in a dry lakebed at White Sands ...
The megalithic site of Gunung Padang in the highlands of western Java was constructed some 2,000 years ago over the course of several generations. Similar stone monuments are found across the ...
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