Is this significant? FWIW, it's in the courtyard of the Vatican Museum.
Did a little more research:
The sculpture is called Sphere Within Sphere (Sfera con Sfera) by Arnaldo Pomodoro. Sites where they have been constructed (with varying diameters) include:
Vatican Museums, Rome
Palazzo della Farnesina, Rome
Trinity College, Dublin
United Nations Headquarters, New York City
Virginia Museum of Fine Arts, Richmond, Virginia
Hirshhorn Museum and Sculpture Garden, Washington, D.C
Christian Theological Seminary, Indianapolis
Columbus Museum of Art, Columbus, Ohio
de Young Museum, San Francisco
American Enterprise Group Inc., National Headquarters, Des Moines, Iowa
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
(shamelessly lifted from Wikipedia)
All four of those Pope memes are misleading - full of debunked half-truths. When you use them like that, it makes Q look like an idiot.
Don't make Q look like an idiot.