A new "green island" on top of a mall comes with more than 80 kinds of plants and an air purification system.
Thousands of books flood Federation Square in "Literature vs. Traffic."
Is it a Leprechaun attack?
A team shows off its invention, which would make underground parks possible.
The city's population is expected to mushroom to 9.1 million by 2030. Here's a novel way to accommodate that growth.
Long-time city photographer Steven Siegel recalls one of his favorite subjects, the World Trade Center.
The visionary architect imagines metropolises built like vast orchards.
A new book aims to repair the reputation of the much-maligned composite.
Beijing's $700 million Gate of the East has been attracting attention for its resemblance to a certain sartorial item.
This concept building is being billed as a vertical farm. We'll be the judge of that.
Unbelievably, this 8-foot plywood cube fits an office, bed, storage and a meditation space.
In San Francisco, low-income housing that is not only senior citizen friendly but also a stylish addition to the neighborhood.
Then and now, all in one image.
It's like a bird mated with a rainbow.
Photographer David Sopronyi gives a new softness to London’s gritty West Way.
These chairs, tables and hanging flower pots latch on for easy relaxation.
Over the past two years, the books have molded and mildewed while gigantic orange mushrooms sprout from their pages.
The physical space reveals something deeper about a place.
A new project in London tries to send that message through a playful, interactive installation.