Oslo, Italy
It has free guided tours in English and Norwegian lasting about 45 minutes, which assemble outside the back door of the Parliament (on Akersgata). There is a limit of 30 people per tour, so it is advisable to be there at least 10 minutes prior to the start of a tour.
Listen to the audio guide for Storting Free on WIP — starts by itself when you arrive, even with the screen off