Imagine the Possibilities

H/T Recyclart Das Park

This simple sewer pipe-to-dwelling conversion suggests many possibilities. Sewer pipe is strong, water-proof, and meant to be buried underground. With the proper end-caps, sealants, insulation, and entry-ways, an underground survival shelter or bunker made of large diameter sewer pipe could be made relatively sustainable for long periods of time -- given a certain ingenuity and resourcefulness.

H/T ImpactLab