Where is John Singer Sargent's "Madame X" painting located?

Question

 

 

Would someone please enlighten me as to where "Madame X", John Singer Sargent's painting is now located? Also, where are the bulk of his paintings located?

Answer 1

 

Madame X is located at the Metropolitan Museum of Art in New York City.

By the way, I got to see an exhibition of Sargent's portraits at the New Orleans Museum of Art years ago. Wow, his work is amazing in person.