Top 100 Artworks of the 20th Century

Top 100 Artworks of the 20th Century
Survey of art history books to decide the top works based on references. Possibly flawed methodology (are some works easier to obtain copyright? did the author use enough/the right books?), but not completely subjective. Maybe useful for my art appreciation teaching readers. Several dead links, but you can easily google the titles.

Marcel Duchamp
Nude Descending a Staircase, No. 2
Clocks in at #4