Oslo is made for walking - in fact, you can walk from the Central Station all the way to the Royal Palace in a straight line. Except for excursions to the museum-loaded Bygdøy peninsula and the Holmenkollen Ski Jump, most attractions can be covered on foot. Oslo is not neatly divided into separate neighborhoods or districts. It consists mainly of central Oslo, with the Central Station to the east of the city center and the Royal Palace to the west. Karl Johans Gate, the principal street, connects these two points.
Oslo is one of the oldest Scandinavian capitals, Oslo has never been on the mainstream European tourist circuit. Many have the impression that it's lean on historic and cultural sights. In fact, it offers enough sights and activities to fill at least 7 busy days. It's also the starting point for many easy excursions along the Oslofjord or to nearby towns and villages.
The Old Town lies south of the Parliament Building (the Stortinget) and Karl Johans Gate. This section contains some of the city's old-fashioned restaurants, along with the Norwegian Resistance Museum and the Old Town Hall.
Aker Brygge is Oslo's newest neighborhood. It emerged near the mouth of the Oslofjord in the old wharf area formerly used for shipbuilding yards. Fueled by oil wealth, steel-and-glass buildings now rise from what had been a relatively dilapidated section. Some of the best shops, theaters, restaurants, and cultural attractions are here, along with apartments.