The one hour tour of this building features visits to both chambers and various other places in between. The building is a masterpiece in architecture and well worth looking around the exterior as well as interior. There are complimentary postcards offered where you can send them to anywhere postage paid by Congresso Nacional which adds a nice touch to this already great attraction where there is no price of admission. Tours in English are available at the weekend, or if you join a weekday tour it will be in Portuguese and you'll be handed a six page printout to guide you through thre tour. Well worth visiting.