During the 18th and 19th centuries, men of wealth and power have built themselves palaces and manors west of Stockholm. Most of them remain as conference facilities. During the 20th century, the area transformed from farms to suburbs, as rail, subway and light-rail lines were drawn. While Bromma and Spånga [ˈspɔŋˈa] are affluent garden cities, the areas of Järvafältet [ˈjærvaˈfɛltət] (Rinkeby, Tensta, Hjulsta) were built as part of the Million Project in 1960s and 1970s, at the subway, to provide low-cost housing. On the west coast of the lake, Blackeberg [blakəˈbærj] is a typical modernist suburb, known for the vampire film Let The Right One In. Vällingby [ˈveliŋˈbyː], built in 1954 as one of the world's first planned multi-functional suburbs, became an icon of the Swedish welfare state. Much due to successful co-operation between phone company Ericsson and telecom operator Telia, the Kista [ˈɕiːsta] area is a flourishing high-tech cluster, rivalling central Stockholm as the main business district.
Solna is an autonomous city. With the Karolinska Institute, famous for selecting the Nobel Prize laureates in medicine, Solna is a centre for health science and biotechnology. Solna also contains the royal park Hagaparken, and no less than three Royal Palaces.
Sundbyberg, nicknamed Sumpan, is Sweden's smallest municipality (kommun) by land area. The settlement grew along the rail lines, with rectangular city blocks as well as detached homes. It is reputed to have a higher percentage of one-person households than any other city in the world.