Engineering marvels are extraordinary feats of design and construction that showcase human ingenuity and creativity. Examples include the Great Wall of China, the Eiffel Tower, and the Burj Khalifa, each representing significant advancements in engineering techniques and materials. These structures not only serve practical purposes but also inspire awe and admiration. They often become symbols of their respective cultures and attract millions of visitors each year, highlighting the importance of engineering in shaping our world and enhancing our experiences.