Feel a sense of peace at Central Jam-e-Mosque, a house of worship for the Muslim community. Stop a while to do some of your own quiet reflection.
You'll be spoiled for sightseeing choice when visiting Gamle Oslo. Central Jam-e-Mosque is a good place to begin here, but there are loads of other worthy attractions to enjoy. Oslo Opera House, Karl Johan Gate, and Viking Ship Museum are near the Muslim temple and will fill in your day nicely.