Beginning in the 18th century, the Champ de Mars was used as a parade ground for the cadets of the École Militaire, a French-classical building located at the southeastern edge of the park. Notable alumni include Napoléon Bonaparte. Nowadays, this vast stretch of grass makes for a great summer picnic spot and is located southeast of the iconic Eiffel Tower. The Wall for Peace Memorial, a steel-and-etched-glass sculpture by Clara Halter, was erected in 2000 and stands in the center of the park. From 2021 to 2024, the Champ de Mars will act as a temporary Grand Palais while the original undergoes Olympic renovations.