Henry Grabar

Shutterstock

How Biofuel Technology Turned Restaurant Grease Into Gold

As its value has risen, a growing class of criminals are focusing on stealing and selling used cooking oil.

Associated Press

The Coming Battle Over Electric Bicycles

E-bikes are poised for a boom, but are we ready for them?

Associated Press

How Lasers Will Give the U.S. East Coast Precise New Post-Sandy Maps

The survey will kickoff the most revolutionary American mapping project in a century.

Reuters

Why Blackouts Are More Common Than Ever, in 2 Charts

Ten years after the 2003 meltdown, weather-related outages are on the rise.

Would This Insanely Complex Diagram Help You Navigate a Subway System?

Tokyo made a guide to its labyrinthine underground network. But despite their good intentions, it may as well have been drawn by M.C. Escher.

Shutterstock

How a Glob of Fat the Size of a School Bus Got Stuck in the London Sewers

Blame the wet wipes.

Jeabyun Yeon/Electrolux

How Design Students See Gadgets Grappling With the Future of Urban Pollution

Breathing walls, noise-to-music converters, and more.

Shutterstock

Why Walmart Still Hasn't Crushed the Regional Grocery Store

Brand loyalty still plays a big role even though supermarkets mostly sell all the same stuff.

Flickr/Poom

Henning Larsen's Greatest Building Was Also His Greatest Failure

The architect, who died last month, spent the last years of his career carefully disowning the Copenhagen Opera House.

Yolobus/Facebook

YOLO of the Day: The Yolobus

Next stop #yolo.

Shutterstock

Hungry? Here's a Map of Every Urban Plant You Can Snack On

Cataloging the fruits, nuts, and herbs hidden in the sidewalk foliage.

Ambitious Crowdfunding Goal of the Day: $2 Million for the Cardboard Bicycle

This world-changing invention is more expensive than we remembered.

Lynn Kloythanomsup/Architectural Black

Suburbia in Sand: Choose Your Own Metaphor

An art installation on San Francisco's China Beach examines the tract home as a symbol for the American Dream.

Nike Football/MiPista

Awesome Impromptu Soccer Field of the Day: One Made of Lasers

Here's one way to activate public space at night.

Brian Foo/Continuous City

Fantasy Versions of New York, Continuously Scrambled

Multimedia artist Brian Foo's latest project explores how urban forms shapes our lives.

Stephen Lam/Reuters

Can San Jose Really Sue Its Way to a Major League Baseball Team?

The city has filed a lawsuit against MLB for stalling the A's move from Oakland. But there's surely a non-litigious deal to be made here.

Tyrone Siu/Reuters

Bizarre Optical Illusion of the Day: Tram Riders Believe Buildings Are Falling Down

Even when they know they're not.

Reuters

Epic Flooding in Calgary, By the Numbers

The Canadian city is only beginning to recover from historic floods.

Worst Postman of the Day: This Russian Package Tosser

Hope you didn't order anything breakable!