A look into the mind of the often subtle urban interventionist.
Counterfeit copies of Dutch artist Florentijn Hofman's massive sculpture are popping up across China.
An illumination project for America's most famous obelisk.
The Bay Area's Jenny Odell creates maddeningly complex sets of similar structures, like stadiums, nuclear plants and cargo ships.
A playful exercise in jam-packed city living.
In Instagram photos.
You won't find better old cityscapes than the ones in this Library of Congress collection.
A day in the life of Brazil's subway and bus commuters.
OK, who dropped acid into England's water supply?
At least, that's not what's going on in this widely circulated photo of a sinkhole filled with bright green ooze.
A photographer stumbles on a payphone 'graveyard' in West Harlem.
Can virtual ball drops and bizarre car sculptures help people see the Rust Belt city in new ways?
Developer Peder Norrby collects iOS Maps glitches that have an accidental artistry.
Redesigned signage is serving a critical role in post-Sandy coastal wayfinding.
Anti-government demonstrations have spread beyond Istanbul's Taksim Square.
"There could be rotting flesh and feces on a mattress," says photographer Amanda Durbin, "and I'd still snap a photo before I called the authorities."
A bite-sized bookshelf greets readers in English, Spanish and Chinese.
There are tents, libraries, free food, even free hugs. But how long will it be allowed to last?