The height of the Eiffel Tower varies by 5.9 inches (15 cm) due to temperature changes.
The Eiffel Tower is a 1,083 foot tall (330 m) wrought iron lattice tower in Paris France. It’s both a marvel of 19th century engineering and a symbol of the city.
When temperatures rise, the Tower increases in size! This is a natural physical phenomenon called thermal expansion. Heat causes an increase in volume that makes the Eiffel Tower a few millimeters taller. This expansion also causes the Tower to tilt slightly away from the sun.
The height of the building varies by 15 centimetres (5.9 inches) due to temperature, and the structure sways a mere 7 centimetres (2–3 inches) in the wind.