The city is an economic and cultural epicenter. Many important institutions are in Oslo. Among these are the Norwegian government and parliament, the University of Oslo and Ullevål Stadium, the stadium of Norway's soccer team. The city also has many museums, theaters and concert venues. Some good cultural places are Frognerparken, the Oslo Opera, the National Museum and the National Theatre. Travelling inside the city is easy with public transportation. Using tram, subway and bus is easy.