The Leaning Tower of Pisa is located in the Italian town of Pisa and is regarded as an incredible feat of engineering. Although the tower was not intended to be leaning, it began its southward tilt soon after construction in 1173 primarily due to loose substrate and poorly laid foundations. (more…)

The biggest hydroelectric power station in the whole world is the Three Gorges Dam that traverses the Yangtze River in China. Although most of the dam is now operational, several underground generators are currently being installed, and the power station is not set to be completely operational until 2011. This large power station has been controversial since the beginning, with environmental impacts and flooding issues two of the foremost problems. (more…)