A great find for tourists but also popular with locals, are the famous public squares dotted throughout Paris. These squares tend to hold significance due to prominent historical events.
YouTube About Excerpt:
"The original Vendôme Column at the center of the square was erected by Napoleon I to commemorate the battle of Austerlitz; it was torn down on 16 May 1871, by decree of the Paris Commune, but subsequently re-erected and remains a prominent feature on the square today."
Video Source: http://youtu.be/-vPITjLKCwo