Below is part of the result for the query "Exhibition of works by the most famous avant-garde artists of the 20th century":
Pablo Picasso (Spanish, 1881-1973): Picasso was one of the most influential artists of the 20th century. He was a pioneer of Cubism, and his work also explored other avant-garde movements such as Surrealism and Expressionism. Some of his most famous works include "Les Demoiselles d'Avignon" (1907), "Guernica" (1937), and "The Weeping Woman" (1937).
Henri Matisse (French, 1869-1954): Matisse was another major figure in the development of modern art. He was known for his use of bold colors and fluid lines. His work often explored themes of sensuality and emotion. Some of his most famous works include "The Dance" (1910), "Le Bonheur de vivre" (1905-1906), and "The Red Studio" (1911).