The concept of the Amphitheater was included in the original park plan. The ground was initially flat, so soil was dug out to create the hollow at the foot of the space. Later, the hollow was effectively split in two by a large gabion wall upon which the Wisteria Pergola was later built. Massive granite blocks frame out the space and create ample seating. The Amphitheater has served as an intimate location for concerts, events, and relaxation. A wooded glen composed of trees including river birch, katusra, weeping beech and southern magnolia, separates the Amphitheater from the rest of the park, adding to its secluded ambiance.