10 Urban Spaces Around the World Reborn as Vibrant Green Parks (Slideshow)
Photo: Wikimedia Commons.
In some cities, parks are replacing asphalt, and city dwellers are suddenly discovering new green space just steps away.
To make cities more livable for an often growing population, government officials, activists and citizens are reclaiming unused or abandoned structures and lots and turning them into new, vibrant green spots that fill the surrounding areas with life.
These 10 examples --- spanning four continents -- are perhaps just the beginning of the concrete-to-green revolution.