(images via: The Design Blog)
As cities become more crowded, green urban space comes at a premium. One idea for preserving recreation space in urban environments is the Sky-Terra Skyscraper by San Francisco-based designer Joanna Borek-Clement. Sky-Terra is a neuron-like network of skyscrapers that tower over the city, bringing public parks, amphitheaters, fields and public pools closer to the sun. The inner core of each structure has elevators to transport people from street level to the top.