Nickel, known for its durability and lustrous finish, has been a favored material for creating stunning outdoor sculptures. Among the most famous is "The Sphere" by Fritz Koenig, originally displayed at the World Trade Center and later relocated as a 9/11 memorial. This massive bronze-nickel alloy sculpture symbolizes global peace.

Another notable piece is "Cloud Gate" (nicknamed "The Bean") in Chicago, crafted from stainless steel with a high nickel content, reflecting the city's skyline. In Europe, the "Atomium" in Brussels features nickel-plated spheres, representing an iron crystal magnified 165 billion times.

Nickel's resistance to corrosion makes it ideal for public art. The "Wall Street Bull" in New York, coated with nickel, stands as a symbol of financial optimism. Meanwhile, "The Kelpies" in Scotland, made of nickel-steel, pay homage to mythical water horses. These sculptures showcase nickel's versatility in blending artistry with endurance.