Oslo is an overwhelmingly museum city. Although the city&rsquos museums are not packed to bursting with the kind of treasures you find in Paris or London, it still has a fair number of these, and then some quirky ones. So start your museum hop with the most ponderous of the lot, the National Gallery (Nasjonalgaleriet) (47-21982000, nasjonalmuseet.no). Housed in a palatial brownstone from 1880, the gallery is divided into several sections that focus on Norwegian art and place it in the context of the larger European art traditions. The first floor houses the gallery&rsquos permanent exhibit, divided into early medieval, Renaissance and modern periods. Here you can see such classics as Pablo Picasso&rsquos Guitar and Glass, Albert Marquet&rsquos Dark Nude, Amedeo Modigliani&rsquos Potrait de Madame Zborowska, Claude Monet&rsquos Spring by the Seine, and a Van Gogh Self Portrait. The Renaissance section has a recently discovered sketch by Peter Paul Rubens as well as El Greco&rsquos St Peter Repentant and Francisco Goya&rsquos Potrait of a Picador, among others. However, the centerpiece of the gallery is the heavily guarded Edvard Munch collection, containing such classics as The Scream and Madonna. The gallery also has an extensive sculpture collection and a large book and souvenir shop.