The Palmer W. Bigelow, Jr. Inner Park was once a five-acre field, which when left fallow, developed into a secondary woodland of mixed hardwood trees. Beginning in the early 1990s, Tower Hill staff and volunteers began clearing trails and thinning the dense understory and opening up the canopy in what would become a native plant garden. The Inner Park was dedicated in the name of Palmer W. Bigelow, Jr. in 2002. The style of the Inner Park is inspired by the Greco-Roman landscape parks of the 18th and 19th centuries. Classical Revival style architecture, including features like the whimsical Folly, the Pope Urn and the Temple of Peace, reflect the romance of antiquity. The Inner Park continues to be developed as a display of North American flora.