Spain is littered with vacant lots and half-built apartment complexes, where developers ran out of money when the construction bubble burst.
But in one Madrid barrio, neighbors are putting an abandoned tract of urban space to creative use.
Behind a chain link fence, in a dusty weed-filled lot between two soaring apartment blocks, Emilio de la Rosa is planting vegetables.
"Different types of products — garlic, beans, tomatoes, lettuce," he says. "We're teaching our children where tomatoes come from — not from the grocery store, but the ground."