Though the glass bridge is the last addition from the original vision, the trail is a work in progress. Becker said no additions are on the books, but other pieces likely will be added.
The trail itself, by connecting indoors and out, offers what Cheekwood as an institution seeks to present to those area residents and tourists who also may be tempted to visit Frist Center for the Visual Arts, Tennessee State Museum or other local visual art attractions.
Cheekwood president Jane Jerry labeled the approach a ''special combination.''
''The arts and the gardens really come together here,'' Jerry said, noting that such a program is capable of drawing families in search of recreation as well as serious art patrons.