Our weekly look back at the stories you may have missed.
Thousands of books flood Federation Square in "Literature vs. Traffic."
Las Vegas and Phoenix were treated to a rare atmospheric lightshow on Thursday morning.
A bike lock that only a monkey could pick.
The distinctive Arabic typography created for the Burj Khalifa.
A team shows off its invention, which would make underground parks possible.
A haunting and poetic portrayal of what was then seen as the city of the future.
Worried your new iPhone 5 will be the object of thieves? What if it came with a small utility blade?
White roofs help bring down the heat, but researchers worry they could also stop the rain.
The capital of Ecuador has one of the best-preserved city centers in Latin America.
The city's population is expected to mushroom to 9.1 million by 2030. Here's a novel way to accommodate that growth.
Leagues are taking an impressive range of innovative and cost-effective steps toward sustainability.
Is this still a good idea?
This swanky avian domicile can fit up to 78 finch families – and one human voyeur.
It's been more than two years since Columbia University professor Kate Orff made waves with her "Oyster-tecture" proposal. She's still pushing.
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.