A new radar system can show us exactly how much rain is falling in a given spot.
A study of Baron von Haussmann's Paris.
A spate of new blogs seek out the underbelly of Paris, London and Berlin.
Just not always for the better: "I've deliberately designed maps that are deliberately horrible to look at, and succeeded."
The French capital plans to form a huge new urban authority, with roughly three times its current population and four times the land.
Smallpox maliciously released in London would spread to several countries before governments could intervene, a new model predicts.
France looks set to implement a series of groundbreaking laws designed to induce landlords to rent to a wider variety of income levels.
Officials describe an "apocalyptic" scene in Brétigny-sur-Orge, just 12 miles south of the city.
What would you do if you had access to all available centralized data?
Milan bans ice cream after midnight, Madrid bans noise. Has the continent lost its taste for fun?
European rail travel is often more expensive and harder to book than cheap, no-frills plane tickets. But that's about to change.
North American cities are producing substantially less wealth per ton of greenhouse gas emissions than their European counterparts.
A series of maps reveals the subtlety of central Parisian economic geography.
And illuminates some national stereotypes in the process.
The planning debate that sparked Turkey's recent protests is part of a larger, kind of weird architectural trend.
Your weekly roundup of what cities are banning around the world.
Surely there's something we can do about this.
Freight is crippling metro areas, but it's rarely part of city planning.
A stand-off with the city could cost Paris one of its most-visited bastions of Bohemianism.