Rådhusplassen

An architectural competition announced in 1916 was won by the architects Arnstein Arneberg and Magnus Poulsson.

Their plan involved paving the square with granite, and making it an urban open space, instead of a park.

[1] Construction of the city hall, given the street address Rådhusplassen 1, started in 1931, and the square was named in 1934.

The square ended up as a six-lane highway that functioned as the main east–west road through Oslo, and was part of European Route E18.

[1] During the summer of 1994, the square was made a car-free zone, and on 21 August 1995, the Vika Line opened.