Oslo is Norway's capital and largest city, with 650,000 citizens. Situated in the East of the country in the Oslofjorden fjord, extending over an inlet of the Skaggerak strait, it is surrounded by green hills and mountains and includes 40 islands and 343 lakes. Oslo is one of the world's northernmost capitals and so gets only 6 hours of sunlight in the winter. In high summer, sunlight hours soar to 18, making its climate markedly different between seasons, with cold yet relatively dry winters.

A relatively compact city squeezed into a thin strip of land along the shoreline, Oslo prides itself as one of the world's most sustainable cities. While it holds an array of historic monuments, Oslo is perhaps most famous for its modern architecture, including striking and daring projects launched at the turn of the millennium. Oslo's economy is powered by the maritime industry, high-tech and clean energy sectors. In 2010, Oslo was ranked as the world's most expensive city to live in by the Swiss wealth management company UBS AG.

Oslo is the demographic, economic and political centre of Norway. As the capital of Norway, Oslo hosts several national institutions. The city has good selection of cultural institutions and a good selection of restaurants, some world class but most ordinary, as well as night life in general. While it is an expensive city for overseas visitors, many of the best things are free of charge, notably Oslo's proximity to wild nature and variety of outdoor activities.