Fletcher Priest Architects

Not so long ago, New York City was a backwater, and London was The City of the English-speaking world. But now New York has, among other attractions, the High Line, and it’s inspired other cities — including London — to work on getting their own repurposed industrial spaces turned into parks.

So London held a “Green Infrastructure Ideas Competition,” and it yielded a winner that takes old mail-delivery tunnels and turns them into public tunnels full of mushrooms.

Fletcher Priest’s Pop Down mushroom farm could provide a break from hot summer heat while producing something edible. But visitors to the tunnel wouldn’t need a flash light: it would be lit by fiber-optics inside the mail rail in addition to sunlight, which would filter down through sculptural glass mushrooms placed at street level.

Whatever, New York totally came up with this idea first! We started thinking about the fiber-optic-lit Low Line like a year ago. Not that everyone can’t have a Low Line, but … just saying.

Also, we’re going to have a bigger ferris wheel. Put that in your Olympics and smoke it.