I thought this was pretty interesting, so I figured I would post something on it. On the Discovery Channel they have a show called "Extreme Engineering". Anyways their ideas are very interesting and I thought I should show those who dont watch the show, the latest Visions of Engineering. All you got to do is click on the site below, http://dsc.discovery.com/convergence/engineering/engineering.html The site has 10 Engineering Sections, in which they show there latest Engineering ideas. Anyways, please give me your idea and thoughts about the specific Extreme Engineering visions that are shown on the site. I also recommend watching the show, it is more detailed then the site IMO. You'll also find that a couple of them have been built, and 1 of them is currently being worked on. Anyways, I specifically like the Underground floating tunnel that will reach from New York to London. I also like the Sky City engineering project. There all so beautifully planned.