Philadelphia

Philadelphia's Newest Art Venue: The Amtrak Corridor

A series of murals asks rail commuters to "think about this space that they hurtle through every day."

Philadelphia's Tourist-Friendly Prison

Eastern State Penitentiary housed its last inmates in 1971. Since then, it's become a destination for visitors, art, and prison-era reunions.

People of Color Are Disproportionately Hurt by Air Pollution

New York and Philadelphia top the list of urban areas with great gaps in pollution exposure between whites and non-whites.

The World's Largest Game of Tetris, Played on a Philadelphia Skyscraper

Using 1,400 LED lights.

The Urban Shift in the U.S. Start-Up Economy, in One Chart

Walkable suburbs and center city companies are dominating the tech scene.

Elevator Music You Actually Want To Listen To

A Philadelphia art installation is rethinking that insipid old Muzak.

The New York Metro's Economy Is Almost as Large as Australia's

How U.S. cities stack up economically worldwide.

And Now, a Late-Winter Reminder to Watch Out for Snow Plows

A GIF to remember the endless snow of 2014. 

When Traffic Congestion Is Both a Great Thing and a Terrible Thing

New research finds that businesses loathe bad traffic at the regional level, but benefit from it locally.

Cities, Mapped by Their Snow Routes

Street grids of necessity.

Think Twice Before Asking Police to Deal With the Mentally Ill

"What cops do is arrest people. If you don’t want to be arrested, you probably shouldn’t call the police."

The Quaint Plans for American Cities, as We Envisioned Them 200 Years Ago

New York in 1776, Charleston in 1780, Baltimore in 1801.

Can a City Really 'End' Homelessness?

Phoenix says it has among veterans. Next it's aiming for the broader homeless population.

The Forgotten History of How Cities Almost Killed the Common Squirrel

At last, historians have charted the great "squirrel experiments" of the 1800s, which saved the humble creature from urban extinction.

America's Wealth Is Staggeringly Concentrated in the Northeast Corridor

Median incomes have been growing the fastest, however, in a very different part of the country.

Why U.S. Cities Have Been Making it Harder to Feed the Homeless

Los Angeles is the latest city to consider a ban on providing meals to the homeless in public.

3 U.S. Metro Areas Have Economies Larger Than Sweden

And other eye-popping comparisons.

How States Rejecting the Medicaid Expansion Sabotaged Their Biggest Cities

Major urban areas are magnets for the uninsured, and the state politicians who turned down the Medicaid expansion are not the ones who will pay to treat them.

Someone in Philly Is Using Instagram to Intimidate Witnesses

The "stop snitching" movement meets social media.