This sculpture depicts a small sphere inside a larger one. Both spheres have part of the shell shattered revealing gearwork-like structures.
Wikipedia's brief article on this sculpture (
visit link) informs that this is one of several similar works by the same artist scattered around the world:
"Sphere Within Sphere (Sfera con sfera) is a bronze sculpture by Italian sculptor Arnaldo Pomodoro.
Versions of the sculpture (diameters vary) can be seen in many settings worldwide, including:
Vatican Museums, Rome
Palazzo della Farnesina, Rome
Trinity College, Dublin
United Nations Headquarters, New York
Hirshhorn Museum and Sculpture Garden, Washington, D.C
Christian Theological Seminary, Indianapolis
Columbus Museum of Art, Columbus, Ohio
de Young Museum, San Francisco
Tehran Museum of Contemporary Art, Tehran
Des Moines Art Center, Des Moines
Hakone Open-Air Museum, Hakone
University of California, Berkeley
Tel Aviv University, Tel Aviv"