Duchamp is responsible for this three-dimensional art piece. The piece was signed "R. Mutt," but the origin of this signature is still debated, though it is said to stand for Richard Mutt.

Christo and Jeanne-Claude's installation art piece The Gates was set up in 2005.

Image accessed through Wikipedia Media Commons: https://en.wikipedia.org/wiki/The\_Gates#/media/File:Gates\_a.jpg

Claes Oldenburg is best known for Pop Art sculptures of everyday objects and more specifically his "soft sculptures". His soft sculptures consisted of creating large, everyday objects so they collapse like a deflating balloon.

Dan Flavin's fluorescent light tube sculptures used the objects' eerie glow to give the area around them an unusual energy. Marcel Duchamp is famous for his urinal readymade "Fountain," while Jeff Koons employed vacuums in his early work. Dali created a Lobster Telephone, and trash art is a genre unto itself.

"A Subtlety" was housed in an old sugar plant and depicted a slave woman naked except for a headscarf in the pose of a Sphinx. The sculpture fused ancient art with the abuses of American slavery in a massive sculpture.

Jeff Koons is a controversial modern sculptor, as he has often turned his eye to pop culture subjects considered outside the realm of high art. Notably, he has a series called "Banality," and has constructed immense metallic sculptures of balloons twisted into animal shapes. While his subjects tend to be "lighter" compared to his contemporaries, like George Segal, Koons' skill with steel and his non-traditional subjects have been highly influential on younger generations of artists, including Damien Hirst and Mike Leavitt.