The Eiffel Tower is not just a static structure; it actually changes size with the seasons! In summer, the heat causes the iron to expand, making the tower grow by up to 15 cm (6 inches). Conversely, in winter, it shrinks back to its original height. This fascinating phenomenon showcases the effects of temperature on materials, making the Eiffel Tower a real-life Transformer. Remember to check the temperature on your next visit to Paris!