Maps

Doug Lemke / Shutterstock.com

Tracking This Year's Dismally Small Monarch Migration

The iconic butterflies are having a rough couple years, with declining populations likely due to extreme weather and habitat loss.

Library of Congress/Google Maps

Seattle, Then and Now (1891 to 2013)

How the city evolved from a timber town to a high-tech powerhouse.

Census Bureau

Where 60 Million People in the U.S. Don't Speak English at Home

The number is on the rise.

Library of Congress

The Incredible, Explosive Growth of Chicago, As Seen Through Its Maps

See the first-ever map of the city, and how it evolved over a century.

Alan Mislove

Watch the Intricate Patterns of Global Infrastructure Emerge From Geocoded Tweets

It's a pretty impressive snapshot of the transportation networks of large stretches of the globe.

Bklynr

Interactive Map of the Day: The Age of Every Building in Brooklyn

Plotting the ages of every structure in the borough.

Peter Dunn

Map of the Day: L.A.'s Freeways, Reimagined as a Subway

Public transit nerds, prepare to geek out.

Library of Congress/Google Maps

Baltimore, Then and Now (1911 to 2013)

A peek at how the city's changed on its 284th birthday.

A Lost Scottish Island, George Orwell, and the Future of Maps

A 141 square-mile island vanished from Google Maps, and the company has yet to restore it. What do glitches mean for little-known places?

Max Roberts

This Guy's Never Met a Map He Didn't Want to Fix

Just not always for the better: "I've deliberately designed maps that are deliberately horrible to look at, and succeeded."

Shutterstock

Hysteria and Racist Screeds Over HUD Plans to Map Neighborhood Diversity

Cue cries of "social engineering," "forced integration," and "tyranny."

Contrailz

The Exquisite Geometry of Global Flight Paths

As revealed by a billion dots of color.

What Happens When Everyone Makes Maps?

OpenStreetMap and other free, online tools have allowed anyone to become a cartographer.

NYCHenge.com

A Map That Shows When Any Street Aligns With the Sunset

Manhattanhenge for every New York City neighborhood.

stockcreations/Shutterstock.com

What's the Most-Loved Burger in Your City?

This map of Twitter data will show you.

Robert Wood Johnson Foundation

Why We Need to Treat America's Poorest Neighborhoods Like Developing Countries

Life expectancy can vary as much as 25 years within some cities. And our current solutions are barely having an impact.

A Beautiful, Bewitching Map of Portland's Aging Buildings

Justin Palmer takes a digital chainsaw to Portland and shows the world its rings.

Luminous Cities

The Most Sophisticated Flickr Maps We've Ever Seen

Telling encoded stories of politics, natural disasters and social movements.

Shutterstock

Yes, GIS Files Are Public Data, Too

California affirms that cities can't withhold digital mapping information.