There was a Curious George episode where George used a skyscrapers (under construction, of course) floor to ceiling wrap around windows to create a vegetable garden so the restaurant down the street had fresh produce.

It wasn’t a bad idea, minus the water damage. Just make a 3 ft planter along all the windows, instead of a window ledge or something, and you would have a ton of food.

Actually, they’re starting to do just that. It’s called wood vaulting. Can’t tell if the lack of decomposition is a pro or a con, though.