|How did they do that?
Man is the only creature that can actually create large complicated structures to solve a problem. Some of these structures are amazing feats of engineering and others have taught us valuable lessons through their failure.
Browse through a complete library of "Building Big, Wonders of The World" which has links to a large selection of bridges dams, domes, skyscrapers and tunnels.
Why did they do that?
We think of failure as a bad thing but sometimes it can teach us valuable lessons. The Leaning Tower of Pisa is one of the most famous buildings in the world because it is slanted. Read the following passage from this website
"Even before it was finished 800 years ago, the Leaning Tower of Pisa - a masterpiece of medieval architecture - began to topple, shaken by earthquakes and sinking slowly into the unstable soil. Today, the top hangs just 16 feet over the base and collapse seems imminent. [There has been] follows a decade-long search for a solution to correct the lean and save the unique building. State-of-the-art computer models, ingenious experiments with models and a string of near-disasters eventually push an international committee of prominent engineers and architects into an 11th-hour decision."
Visit the following sites and research on your own to read about the "Leaning Tower of Pisa."