The National Gallery
Why locals love it
Works from the classical era through the renaissance, impressionism and into the cubist and modernist movements. What's unique is that they exhibit works from Norwegian artists beside the European painters who influenced and often taught them. It's amazing to see how Norwegian artists make the cubist style their own.
Why you should visit it
Confusingly, Munch's most famous paintings, The Scream and Madonna, are not found at the Munch Museum, but here at the National Gallery surrounded by many of his other works from the impressionist period. Tickets are relatively cheap at 50kr and entry is free on Sundays. Give yourself 1-1.5 hours to take a leisure walk through the exhibition halls.
Lockers are free, but require a 20kr deposit (why carry your stuff when you don't have to). Ask for a key when you buy your ticket.