Second most viewed was a set of ten stamps issued by Britain's Royal Mail celebrating 20th-century British Design classics.
A compact living environment called OrganiCube by Austrian designer Christian Precht was third most popular.
In fourth place was a house with a mobile section that slides along to cover and uncover different parts of the building, designed by London architects dRMM.
Fifth most popular was Boxhome, a small residential project in Oslo by Norwegian architects Rintala Eggertsson.
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