Arnaldo Pomodoro, one of Italy’s most prominent contemporary artists whose bronze spheres decorate iconic public spaces from the Vatican to the United Nations, has died at age 98, his foundation ...

When the Spheres were first proposed years ago, the artist’s rendering made them seems as if they’d tower over low-slung buildings nearby. What a difference a few years make.

The Spheres’ first plant resident was an Australian tree fern, known as Cyathea australis. There are more than 25,000 plants woven into 4,000 square feet of the living walls.