Some incredible structures like the Great Pyramid of Giza, the Great Wall of China, the Parthenon, the Eiffel Tower, and Stonehenge have fascinated us and become a part of our shared heritage. They also serve as popular selfie spots.

However, these famous landmarks were built at different speeds. Some took many decades to complete, others just a few years, and some were gradually constructed over centuries. Let’s take a closer look at these remarkable structures and the time it took to make them a reality.