In 2002, new European banknotes were introduced, in different denominations of the Euro. The currency was designed so that no nation was favored over others. They contain architectural images, including seven different bridges representing different historical eras in Europe. The illustrations are all fictional, in order to remain geographically neutral. Or, they were. Dutch designer Robin Stam admired the currency illustrations and mentioned that it would be funny if someone built those bridges, all in one country.
The local council responsible for constructing a new housing development in Spijkenisse, a suburb of Rotterdam, heard about the idea and approached Stam about using his designs.
"My bridges were slightly more expensive but [the council] saw it as a good promotional opportunity so they allocated some extra budget to produce them," says Stam.
The bridges are exact copies of those shown on the banknotes, down to the shape, crop and colour.
Dezeen talked to Stam about his project and posted pictures of the bridges, which are now in use by pedestrians and cyclists. -via Metafilter
I just wish the source post included all the Euro notes with all the photos.