How do simple building elements create architecture? A puzzling question lands you in the wondrous world of construction. Have hands-on fun by building your own tower, and get to know Fazlur Rahman Khan, who came up with the 'tube' structure in skyscraper design. The place to go to answer all your science-related questions - it's the One Stop Science Shop. Do-it-yourself experiments, a hologram entry phone, and fun stories about great scientists help visiting kids to understand some of the trickiest principles of science.