Raymond Pettibon: Underground

This museum is located in a stunning 17th century hôtel particulier in the Marais district of Paris. It's dedicated, as the name suggests, to the great artist Pablo Picasso. Descendants of the Spanish-born artist sowed the seeds for this gallery with works they offered to the French government in lieu of inheritance tax. French law allows for, in exceptional circumstances, the payment of inheritance taxes with artworks instead of money. This exception is only made if the art is an important contribution to France's cultural heritage - which is of course true in the case of Picasso.

With a permanent collection, temporary exhibitions, and an in-depth archive, this is one of the most important collections of works by one of the 20th century's greatest artists.