What s the LARGEST man-made structure EVER built on Earth? The truth about this colossal feat will astound you! Agent who rushed to Trump’s aid in shooting will lead Secret Service Scientists ...

America might have landed on the moon, but Russia drilled the deepest man-made hole on Earth. Since the early 1960s, scientists have attempted to drill down to the Earth's mantle. It took 20 years ...

One of the largest and most remarkable human-made structures in the world ... but has also impacted something as fundamental as Earth’s rotation. The Three Gorges Dam is a marvel of engineering ...

The Earth has a layered structure made up of the core, the mantle and the crust. Different elements are present in different parts of the Earth’s structure. The crust is made from enormous ...