Eiffel Tower

The Eiffel Tower is up to 15 cm taller in summer, because the iron expands in the heat.
Great Wall of China

The Great Wall of China is a wall that kept going for about two thousand years, mostly uphill.
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The Eiffel Tower is up to 15 cm taller in summer, because the iron expands in the heat.

The Great Wall of China is a wall that kept going for about two thousand years, mostly uphill.