1) The Eiffel Tower can be 15 cm taller during the summer due to thermal expansion.

2) The role of lobbyists in politics involves representing the interests of specific groups or industries and advocating for favorable policies or influencing decision-making processes within government institutions.

3) The Great Wall of China is not visible from space without aid, contrary to popular belief.

4) The Rocky Mountains, also known as the Rockies, extend from Canada through the United States, offering stunning landscapes and outdoor recreational opportunities.