The Eiffel Tower grows and shrinks

The Eiffel Tower was finished in 1889, and yet every single summer it still manages to grow. When temperatures reach in excess of 40 degrees Celsius (104 degrees Fahrenheit), the metal at the base of the tower expands, raising the tower up to 6 inches higher. The opposite happens in the winter, with frigid weather shrinking the tower back down to its original height. In this way, the Eiffel tower continues to change its height year after year, and will continue to do so for the rest of time.