Minor adjustment to PyraPOD4 plus showing a way to place mini houses at four corners of PyraPOD8

This video combines two parts, the first part shows the minor adjustments to the pyramid structure on top of PyraPOD4, while the second part shows how four cube-like mini houses can be combined with PyraPOD8 to form a complex, which kills two birds with one stone: live in the mini houses while grow greens and mushrooms inside PyraPOD8, an invovative greenhouse that is warm in winter and cool in summer simply using the solar thermal energy.