Zupagrafika, a Hispano-Polish design house (in their own words) located in Poland, released a collection of paper cut-out models inspired by urban architecture. The models are sold online and provide miniature pieces of European city beauties.
Cities include London, Paris, Zagreb, Katowice and Warsaw. All buildings are aesthetically structured and reflect on a kind of ironical distance between the sweetness of a paper cut-out and the harshness of urban gray buildings.
Each cut-out building costs 6 Euros, and I think 4-5 buildings are enough to provide the effect. Shop online.