World Wonders, Worn Down?

World Wonders, Worn Down?
Here are some websites to help you find evidence to support your argument.
Eiffel Tower:
Information about the construction of the Eiffel Tower
http://www.toureiffel.paris/everything-about-the-tower/themed-files/69
Eiffel Tower at a Glance
http://www.toureiffel.paris/en/everything-about-the-tower/the-eiffel-tower-at-aglance.html
History of the Eiffel Tower
http://www.history.com/topics/eiffel-tower
Machi Picchu:
General Information about Machu Piccho
http://travel.nationalgeographic.com/travel/world-heritage/machu-picchu/#/widemachu-picchu-temple-of-the-sun_92491_600x450.jpg
History of Machi Picchu
http://www.history.com/topics/machu-picchu
Can we preserve Machi Picchu?
http://www.smithsonianmag.com/people-places/saving-machu-picchu-153497816/?noist
Easter Island and the Moai:
Information about the Moai
http://www.livescience.com/24021-easter-island-rapa-nui.html
Quick Facts About the Moai
http://www.sciencekids.co.nz/sciencefacts/earth/easterisland.html
Can the Moai be preserved?
http://www.travelandleisure.com/articles/rocks-in-a-hard-place
Pyramids of Giza:
History of Pyramids of Giza
http://www.britannica.com/topic/Pyramids-of-Giza
Information about the Pyramids of Giza
http://science.nationalgeographic.com/science/archaeology/giza-pyramids/
Statue of Liberty:
Information about the Statue of Liberty
http://whc.unesco.org/en/list/307
Quick Facts about the Statue of Liberty
http://www.nps.gov/stli/learn/historyculture/statue-statistics.htm
Timeline of the Statue of Liberty
http://www.nps.gov/stli/learn/historyculture/liberty-island-a-chronology.htm
Lost City of Petra:
Information about the Lost City of Petra
http://science.nationalgeographic.com/science/archaeology/lost-city-petra/
History of the Lost City of Petra
http://www.amnh.org/exhibitions/petra/city-of-stone
Taj Mahal:
History of the Taj Mahal
http://www.amnh.org/exhibitions/petra/city-of-stone
Can the Taj Mahal be preserved?
http://www.smithsonianmag.com/history/how-to-save-the-taj-mahal-49355859/?no-ist
Facts about the Taj Mahal
http://www.sciencekids.co.nz/sciencefacts/engineering/tajmahal.html