The Champ de Mars is a large park in Paris, France, which is open to the public and located at the foot of the Eiffel Tower. Many visitors to Paris enjoy a stop at the Champ de Mars, and numerous photographs taken from the Eiffel Tower feature the sprawling grounds of the park. This site is open to anyone to wishes to visit, and it features beautifully landscaped grounds as well as open greenspace which is sometimes used for various events.

The history of the Champ de Mars began in the middle ages, when it was established as parkland by the Church, serving two abbeys which were then located on the outskirts of Paris. In the 18th century, the park was appropriated in the name of the state, along with other lands, for the purpose of constructing the École Militaire, a military school, and it acquired the name "Champ de Mars," or "Field of Mars," a reference to the Roman god of war.