The Best Piano Works of the 20th Century

Very much enjoy Valentin Silvestrov (Ukrainian) music, much of which involves piano.
Would recommend checking out some of his CDs.
IMO: Thread title should be "personally most interesting" rather than "best piano works".

Robert Greenberg, music historian and educator, has a course: The 23 Greatest Solo Piano Works. His choices from the 21st century are:

1. Debussy— “The Sunken Cathedral”
2. Debussy— Préludes, Book One
3. Albéniz—Iberia
4. Ravel—Valses nobles et sentimentales
5. Scriabin—Piano Sonata No. 5
6. Rachmaninoff—Etudes-tableaux
7. Prokofiev—Piano Sonata No. 7
8. Copland—Piano Variations

I have some listening to do!

Ligeti - Etudes
The last one might miss the 20th century (2001) but I always found these very enjoyable. I just realized I don’t have the third book :(

https://en.wikipedia.org/wiki/%C3%89tudes_(Ligeti)

Excellent list as above.  Happy Listening!

Gotta have Rachmaninov's Paganini Rhapsody