Yes, Oslo offers free city tours that are a great way to explore the city's history, culture and Scandinavian architecture. The tours are led by knowledgeable local guides who provide insights into the city's past and present. The routes usually take in popular sights such as the Oslo Opera House, Kvadraturen and Akershus Fortress. The tours are free, but tips are encouraged. They last about 1.5 to 3 hours, making them an affordable and enjoyable way to see Oslo's highlights.