The Shimizu Mega City is just one of the many buildings completely planned out for Japan and only waiting on the materials, funding and technology to be able to bring them to fruition. One other such project is the X-Seed 4000, at 13,123 feet high, the massive, mountain-shaped building envisioned by...

I first got news of this proposed structure way back in 2004. When I first watched the Discovery Channel program detailing the plans for this project I was very skeptical and thought at the time that nothing as massive as this could be build in my lifetime. Three years later and I got an email from a...