An urban plan for Paris could reduce the city's greenhouse gas emissions by up to 75 percent in 2050.
An underwater eco-city is designed for deep-sea living.
Two city projects -- one in Melbourne, Australia and the other in New York City -- will bring nature to the urbanite.
Adventures abound this week's gallery. Take a walk (or ride) on the wild side.
This week, we take to the skies with technology that will put the wind in your sails.
This week we feature city surfing, levitating speakers, tornadoes made of light and swarms of robots that self-organize into complex shapes.
A proposed construction project would result in an enclosed, climate-controlled retail metropolis. Continue reading →
Plan calls for bringing the beach to the city by way of a giant sand-covered river barge. Continue reading →
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