Husband and wife duo Drop-A-Pin has spent the past five years visiting different parts of the world and documenting buildings they love. The duo was trying to look for a pin of a building they liked but couldn’t, and the idea of creating their own pin just came through. As an architect and a designer, it’s easy to understand why the enamel pins from Drop-A-Pin could stand out among its peers.

From the Pantheon in Rome, Eames House in Los Angeles to Sydney Opera House, these historical landmarks and modern architectural icons have been turned into small pins, yet all the buildings are highly recognisable as the significant features on each of them have not been missed. The duo was keen to use a minimum number of lines to keep the graphic clean, so it’s all about having the eye and sense to decide what elements should stay. The project is available on the crowdfunding platform Indiegogo and ending in less than two weeks.