Top 10 most impressive engineering projects - FINAL

3. Transcontinental Railroad

Transcontinental Railroad

By the middle of the 19th century, the benefits brought by the host of advances of the industrial age were gradually beginning to reach America. These advances coupled with the desire to connect East and West prompted the spectacular engineering project that forever changed the continent. Those building the railroad battled against hostile terrain, a civil war and the Wild West. This video provides an interesting narrative on the construction of the Transcontinental Railroad and the social-economic conditions of the time.

2. The Great Wall of China

The Great Wall of China

The Great Wall of China is the longest man-made structure in the world at about 4,160 miles long. The wall was constructed between the 5th Century BC and the 16th Century BC.  What is most impressive about this structure is the fact that it was accomplished without the use of modern machinery in extremely rough terrain.

1. Pyramids of Giza, Egypt

Rising out of the sand on the outskirts of Cairo are the Pyramids of Giza, ancient monuments that are the last standing of the Seven Wonders of the Ancient World. The ancient necropolis consists of the Pyramid of Khufu, the Pyramid of Khafre, the Pyramid of Menkaure, and the Great Sphinx.

The allure of the pyramids is undeniable, with archaeologists still fascinated by their construction. While some think the stones were dragged from a quarry and somehow lifted into place, others think that the stones were built in place with some kind of limestone concrete. Whatever the mode of construction, this project qualifies as the most impressive given the size and the mystery behind its impeccable construction.

Pyramids of Giza, Egypt