Uri Friedman

Flickr/PortoBay Hotels & Resorts

Rio de Janeiro, in Fantastically High Definition

The Brazilian city like you've never seen it. Really.


Crowdsourcing Crime Reporting in the World's Murder Capitals

On the problem-solving power of cell phones in Central America.


Do the Winter Olympics Have a Future in a Warming World?

 Russia's balmy weather could be a sign of things to come, a new study says. We're running out of places cold enough to host the Games.

Zak Ziebell

What You Get When 30 People Draw a World Map From Memory

Brits and Indonesians may not be happy with the results.

The Quest to Create the Perfect Map

12 cartographic experiments that changed cartography.