"Woman's Head" by Picasso and Mondrian's "Stammer Mill with Summer House" will go back on display nine years after they were stolen in January 2012.
A former employee of Picasso was convicted of stealing 271 pieces of work from the artist and hoarding them in his garage for 40 years.
"Le Marin," supposedly painted while France was under Nazi occupation, has been withdrawn by Christie's after accident.
Experiments show people who are more "open" are more creative, and these people have different visual experiences, experiments show.
Auction house sells more than $1 billion in art in single week, including a $179.4 million Picasso and a $56.2 million Warhol.
Picasso's 'Les femmes d'Alger, Version O' sold for a record-setting $179,365,000.