City & Urban

City skyline
A city is a large town or incorporated municipal center. Cities often feature teeming populations, a local government led by a mayor or group of aldermen, an organized structural layout, and sometimes a distinct culture. The term "urban" describes things related to cities.
 
The first cities evolved as agriculture let humans adopt more sedentary and specialized lifestyles, eventually becoming religious, administrative and industrial epicenters. The city of Jericho is arguably the oldest city to hold a continuous population since its founding — in 7000 BCE, the city had 2,000 residents, a thriving metropolis for its time. Ancient Rome was the first city to break the 1 million mark; today, Tokyo is the most populous city with 35 million people. (Photo: Ghassan Tabet/Flickr)

Montreal turns iconic hospital into a shelter for people and their pets

Digital billboards in Stockholm swap ads for homeless shelter info

Why did so many Detroit residents turn down free trees?

NYC helps put feral cats to work as mousers

Los Angeles debuts first early earthquake warning app in U.S.

Why Oslo is saying no to cars in its city center

Don't underestimate the economic benefits of cleaning up the environment

This NYC subway station has gone to the dogs

Milan will counter climate change with help from 3 million new trees

More than 95% of the world's population is breathing unsafe air

Why San Francisco nixing parking minimums is a win for the environment

Fish pond evacuated after rogue otter's appetite proves unstoppable

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