People build skyscrapers primarily because they are convenient -- you can create a lot of real estate out of a relatively small ground area. They're also awe-inspiring. Skyscrapers capture our imagination -- how high can we build them? Learn about the architecture and design of these monumental buildings.
You might associate green architecture with plastic rain barrels or ugly solar panels, but green design has come a long way. Green architecture can be gorgeous, as we'll see in this article.