John Metcalfe

Meet San Francisco's Newest Mayor, Who Is a Dog

Today City Hall celebrates Frida, a 6-pound chihuahua mix and very good girl.

This Dutch City Built a Glowing 'Van Gogh' Bike Path for Psychedelic Cyclists

The luminescent path is modeled after the painter's "The Starry Night."

Expect 50 Percent More Lightning in a Warmer World

You're going to want to start staying away from lone trees and flag poles as climate change continues.

Chicago Has More 'Avenues,' While San Francisco Prefers 'Terraces'

An analysis of roadway suffixes in six major U.S. cities reveals differences rooted in history.

San Francisco Is Painting the Streets with Historical Creeks

A placemaking project traces the city's long-buried arroyos.

This Water Bottle for Bikes Generates H2O From the Air

Under hot and humid conditions, "Fontus" claims to "make" 17 ounces of water in an hour.

Two-Thirds of the U.S. Is About to Get Really Cold

One expert explains the "polar vortex" as a pack of wild dogs.

What Will Be the Coldest Day in Your City This Year?

Crunching the numbers on the geography of winter's worst weather.

Is This the Oldest-Ever 3D Map of Transit Ridership?

The Germans built it with colored wooden sticks around 1913.

The Netherlands Gets the World's First Solar-Powered Bike Lane

Leave it to the Dutch to make cycling even greener.

A Map of San Francisco, After a Catastrophic Rise in Sea Levels

Imagining the bustling nautical society of the Bay Area archipelago.

New York's Rat Population Is Far Smaller Than You Might Guess

The latest tally of the city's rat horde dispels the myth that the city is home to "one rat per person."

A Scooter That Folds Up Into a Belt

The only thing you have to worry about is riding with your pants falling down.

One Wisconsin City Gets Visited by a Fleet of 'Hole-Punch' Clouds

These immense sky divots are the result of human activity.

Google Glass Has a (Literal) Blind Spot

Researchers say the techno-specs create a "partial peripheral vision obstruction."

These 'Landcarpets' Are Modeled on Satellite Imagery

And you can have one customized for your location, too.

San Francisco Plans to Produce More Fog to Build Community Spirit

The Market Street Prototyping Festival will bring a giant dining room, a roving selfie machine, and other wackiness to the city.

A Wonderfully Crass Look at the Party People of London's Shoreditch 'Hood

Street photographer Dougie Wallace delves into the "total f------ chaos" of the popular British nightlife spot.

Who's Behind These Gruesome Murders of Street Furniture?

This sofa would really tie an (autopsy) room together.