John Metcalfe

MustangWanted/YouTube

New Sport: Hanging By One Arm From Awfully High Places

This Ukranian urban climber is either extremely skilled or deranged (or perhaps both).

ducu59us/Shutterstock

In Arizona, Fear of a Transgender Toilet

Arizona wants to tie bathroom access to birth certificates; scientists sound warning about pit latrines; a municipal government does BYO toilet paper.

This Could Be the World's Most Uncomfortable Pedestrian Crossing

An underpass with a forehead-level concrete ceiling seems designed to knock out Chinese citizens.

1week1project

A Super-Luxe Pad for Retired Popes

Can you imagine Pope Benedict XVI sorting through his wine cellar in this halo-shaped retirement home?

marcovarro/Shutterstock

Car Exhaust Hurts Children as Much as Second-Hand Smoke

European researchers believe 14 percent of chronic childhood asthma can be blamed on living near busy roads.

Mapping the Noxious Ozone Plumes Over Houston

A new app from Texas researchers shows how clouds of lung-pummeling ozone move through Houston neighborhoods.

Kuzma/Shutterstock

How Does One Get Banned From Every Public Library in the World?

You probably don't want to know.

Jeffrey Millstein

The Strange Beauty of Airports Photographed From Above

Jeffrey Milstein has turned a lifelong fascination with airplanes into a gorgeous portrait series of jet hubs.

Mass Appeal

New York Graffiti Crew Redecorates an Abandoned Theme Park

TrustoCorp totally had its way with the old Rock-a-Hoola water park in California's Mojave Dessert.

America's Infrastructure Earns a 'D+', Which Is Actually an Improvement

The nation's engineers surprise everyone with a slightly less dismal outlook on the state of our infrastructure.

All the Cities Photographed From the International Space Station

If your hometown's been shot by astronaut/prolific shutterbug Chris Hadfield, it's probably viewable on this interactive map.

Hugon Kowalski

Would More People Use the Public Library If It Had a Water Slide?

More than half of Poland doesn't seem to be reading anything. Would a more festive library design help them pick up a book?

A Pair of Nuts Fly Through Rio de Janeiro's Vertical Labyrinth

Extreme-sports enthusiasts Jokke Sommer and Ludovic Woerth take a hair-raising ride through Brazil's urban jungle.

UCLA

And the Cities Most in Danger of a Super-Flu Outbreak Are...

Researchers say lethal strains of influenza are most likely to arise next in coastal China, the Nile Delta and elsewhere.

John Metcalfe

What Kind of People Celebrate San Francisco's 'Pi Day'?

People who are very enthusiastic about irrational numbers, it turns out.

Roel Verhagen Kaptein

Is This a Good Way to Reinvent the Recumbent Bicycle?

Out of the Netherlands comes this unusual design for a streamlined commuting recumbent.

Dieter Karner/Flickr

Moscow Says 'No' To New Mosques

The mayor says citizens are "irritated by people who speak a different language" and have "different manners."

USDA

New York's Green Roofs Are Crawling With Fungi

And the fungal communities are quite different from what's found in the city's parks.

George Dolgikh/Shutterstock

Survey Claims That 75 Percent of People Use Cellphones in the Bathroom

One-quarter of men surveyed also reported sitting down to pee so they could use their phones with both hands.