I came across this video recently and was mesmerized by it. The absolute precision involved despite working with heavy duty machinery and huge slabs of rock is an incredible sight.  This clip is part of a longer documentary but even this snippet can give you an appreciation for the scale of this task.

The relationship between humans and the environment is one the critical themes that come up in AP® Human Geography. This clip is a perfect example of the primary sector which is defined as the direct extraction of resources from the Earth’s surface, usually through farming, mining, or fishing.