Imagine the tallest building you have ever seen. Is it tall enough to scrape the clouds, block the sun, and leave you in awe? Engineers and scientists are already working on designing a structure that will make even the world's tallest building look tiny in comparison. The International Space Elevator Consortium meets annually to put pen to paper and figure out how to make this mega-structure a reality. If you didn't catch it, the hint was in the name - we're talking about an elevator into space.