Eiffel Tower
The first digging for the foundations began on January 28, 1887, and all construction was concluded on March 31, 1889. When the tower was built, it was only meant to be kept for 20 years. People did not like the Eiffel Tower and wanted it taken down because they thought is was an ugly structure polluting the scenery of the Paris sky. After the 20 years, the tower became the property of Paris again.