Take in Oslo's classic downtown sites and hear its vivid stories on this affordable self-guided walking tour. • Find out about the dazzling balls held in the old Den Gamle Logen lodge, and the illicit activities that unfolded in the Grev Wedels Plass park just outside its walls • Hear from producer Lars Engerengen, a Norwegian writer and photographer with more than ten VoiceMap tours under his belt • Do it all in 45 minutes or linger at...