Having stood the test of time, some of the oldest man-made structures in the world range from modest huts, megalithic temples and prehistoric pyramids to ancient burial mounds and Aboriginal ...

But while these structures often steal the spotlight, there is something fascinating about the world’s largest man-made lake based on surface area. Created by flooding entire villages and ...

These amazing structures seem too detailed, too complex, too intricate, or too big to have been built by people, particularly those made long ago before machines existed to aid in their creation.