Impressive Engineering Feats Around the World
The Great Pyramids, the Eiffel Tower, and the Great Wall of China are just a few testaments to human ingenuity throughout the ages. As building technology has advanced, so have engineers been able to create ever more impressive structures. Buildings grow taller, bridges stretch longer, and tunnels dig deeper. Indeed, some of the newest marvels seem to defy the laws of physics and nature. Learn about 20 incredible engineering feats that might merit a visit on your next vacation.