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Stockholm, Sweden

Stockholm might be better known as a tourist hub (or for its cleanliness), but last year, U.S. venture capital firms invested nearly $200 million in Swedish tech companies — mostly in Stockholm. In 2010, they sunk in $308 million. Streaming music giant Spotify calls the city home, as does Qliktech, a business analytics company. The city is even a gaming hub, with Mojang, the creator of the Indie-game smash Minecraft, set there.

Photo: Ellen Rooney | Robert Harding World Imagery | Getty Images