Richard Serra, a major figure in contemporary art with monumental works made of rusty steel plates, died Tuesday at the age of 85. He died at his home in New York state following pneumonia, according to the New York Times.

Born in San Francisco to a mother of Russian Jewish origin and a Spanish father, he trained in Paris then settled in the 1960s in New New York. Exhibited in major American museums in the desert of Qatar, Richard Serra has delivered massive, rounded works, yet minimalist in appearance.