It consists of sub-districts Alppila and Harju, and is bordered by Kallio in the south, Taka-Töölö in the west, Pasila in the north-west and north, and Vallila in the north-east and east.

Bögelund cardboard factory, belonging to Serlachius company, was located at Street Aleksis Kiven katu 52–54 from year 1920.

Also Brahenkenttä, serving as a sports field used for football, basketball, minibasketball, skating and iceball, depending on the season, is located in Harju.

[3] Next to Linnanmäki is located the House of Culture that was designed by Alvar Aalto, and originally built for the Communist Party of Finland.

[4] [5] On the opposite side of Linnanmäki is Park Alppipuisto, which is a popular place where people like to gather in the summertime.