Save this one for a sunny day because you'll be spending lots of time outside. The Norsk Folkemuseum stands out among the batch of museums clustered at Bygdøy as it showcases local life and traditions. There's an appealing, vibrant collection of national costumes, head-dresses, traditional toys, photos, and Sami artifacts from Lapland in the exhibition halls, but the big attraction here is the open-air museum, where about 150 perfectly reconstructed buildings of differing uses and styles have been squirrelled together to present a mini-Norway down the ages.

The museum displays a conical turf-built Sami goahti, farm houses from different regions, a pharmacy, and half-timbered town houses, plus a multi-gabled, 13th-century wooden stave church shipped here in its entirety from Gol. Museum staff dress in peasant costume, demonstrating traditional crafts and farming methods. Festivals are held throughout the summer, with traditional foods, folk dancing, and song; participants young and old get the chance to dress in festive gear and join in with cooking and craft-making displays.