While the identity of the tunnel-makers remains elusive, one thing is clear—these million-year-old structures hold secrets ...

Unusual structures of unknown origin discovered in desert rocks have been documented in a new study. In the desert regions of ...

Africa's political landscape is shaped by a diverse range of older leaders, many of whom bring decades of experience to the ...

1. Gobekli Tepe, Turkey (9600-8200 BCE): Considered the oldest structure in the world made by humans, this neolithic settlement features large, standing stones in circles ...