The Eiffel Tower in Paris wants no demonstration because it is one the most well known monuments in the world where approximately 5 million people visit every year from all corner of the globe.
The Tower was designed by Gustave Eiffel that is why it’s called Eiffel Tower. It was completed in 1889 for the Paris world exhibition. The Tower was designed and built just two years by 132 workers and 50 engineers. It is 324 m high and its weight is 7300 tons.
I'd definitely recommend everyone must visiting this Wonder.