The most worthful painting in the world?

Question:

The most worthful painting in the world?

Best Answer - Chosen by Asker: The world's most famous paintings, especially works done before 1800, are generally owned by museums, which very rarely sell them. They are quite literally priceless. The Guinness Book of Records lists the Mona Lisa as having the highest insurance value for a painting in history. It was assessed at US$100 million on December 14, 1962, before the painting toured the U.S. for several months. Taking inflation into account, the 1962 value was approximately US$670 million in 2006.
The highest price paid in recent years at auction for a painting was in 2004 when Sotheby's sold Picasso's "Boy With a Pipe" (painted in 1905), for $104 million,