Warsaw

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In the Climate Change Economy, It's About Efficiency, Not Just Growth

North American cities are producing substantially less wealth per ton of greenhouse gas emissions than their European counterparts.

Kacper Pempel/Reuters

A Peek Inside the Narrowest House in the World

If you weren't looking for it, you might walk right past the Keret House in Warsaw.

Centrala

The New Narrowest House in the World

At its widest point, the Keret House in Warsaw is little more than 4 feet across.

Flickr/rkirchne

Subway Platforms From Around the World

As iconic as anything above ground, these subway platforms leave riders with an added sense of the city they serve.

Postcard From Warsaw

A monument to 22,000 massacred Poles is looking for a new home, and other news.

Reuters

Why You Should Buy an iPad in Bangkok Instead of Buenos Aires

Comparing the price of an iPad and more than 20 other consumer goods across a selection of the world's major cities.

Flickr/zestbienbeautouza

The World's 10 Best Transit Poems

A short list of our favorite verses from public transportation around the globe