MEGA STRUCTURES PART 1/4 , China most advanced country in the world

MEGA STRUCTURES PART 1/4 ,
China most advanced country in the world ,
A video series looking at concepts for truly huge structures that we might see in the future. We begin with ground-based and Low Orbit ...
Some apply the term to any especially large or tall building. Some sources define a megastructure as an enormous self-supporting artificial construct