Jan Van Eyck's Arnolfini Wedding Portait one of my favorites painting, the details are awesome, look at the mirror for instance with the miniature paintings around the frame that have scenes from the life of Christ..a truly awesome piece of work.
The palace's main attraction, beside the art gallery, is the Casino dell'Aurora. The casino was designed by Vasanzio is located overlooking the Piazza del Quirinale. On the walls are four frescoes of the Seasons by Paul Bril, and two Triumphs by Antonio Tempesta. Its ceiling displays what is considered the Bolognese painter Guido Reni's fresco masterpiece (1614), commonly called L'Aurora