Champ de Mars
From Wikipedia, the free encyclopedia.

The Champ de Mars is a vast public area in Paris, France, located in the 7th arrondissement, between the Eiffel Tower to the northwest and the École Militaire to the southeast. Its name means "Field of Mars", from Mars the Roman god of war, because it was originally used for military training. It was probably named after the Campus Martius of Rome.
During the French Revolution, the Champ de Mars was the setting of the Fête de la Fédération, on the 14 July 1790. It was also, ironically, the setting of a massacre on July 17, 1791, when a crowd collected to draft a petition seeking the removal of King Louis XVI, soldiers under the command of the Marquis de la Fayette opened fire, killing about 50 people.
Montreal
The Champ-de-Mars is also a public park in Montreal. Formerly a military parade ground, it is located in front of Montreal City Hall. It contains remnants of Montreal's fortifications.
Champs de Mars - Tour Eiffel is the name of a metro station located near this park.