As children love to imagine, what if we actually built our cities out of Legos? A bridge in Wuppertal, Germany, a city of 350,000 to the northeast of Cologne, offers one vision of what that city might look like. Street artist Martin Heuwold, or as he tags, MEGX, created the grand illusion last fall when he painted a dingy concrete span in the bright hues of every architect’s favorite toys.

The city appears to be banking on the High Line Effect. Faced with the prospect of a declining population, Wuppertal has been looking for ideas to reinvigorate the city and increase residents’ quality of life. The Lego Bridge is part of a 10-mile pedestrian and cycle path called Wuppertal Bewegung e.V. being built through the city on what was once the Wuppertal Northern Railway. Plans are also on the boards for a heritage trolley to run atop the viaduct. [H/T Colossal.]