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Maps
Fra Mauro

My 5 Favorite Maps: Bill Rankin

The first installment of a new series in conversation with mapmakers on the works that most inspire them.

Photos
Dan Marker-Moore

'Time Slicing' Cityscapes at Dusk

An L.A. photographer pieces time-lapsed collages of urban landscapes into remarkable photos.  

Videos
The Atlantic

What Is a City?

A pair of physicists tackle a seemingly simple, incredibly complicated question.