New York City is doing some serious work on the Second Avenue Subway, the first new line built under the city since 1932. The $4.5 billion project aims to decrease commuter congestion for east Manhattan. Check out these pictures. They are incredible.

Here with your daily dose of infrastructure porn is XKCD's Randall Munroe, who's gone and rounded up all of North America's various subway systems and combined them into one big interconnected map.

Jacob Wyatt's short animation Metro begins with a very mundane problem: a girl having trouble navigating the subway platform. But when a fox steals her metro ticket, she follows it on a chase through the secret world that exists between the subway platform and the surface world, filled with both expected and…

Fast food is loaded with salt. This should come at no surprise. What is surprising, however, is that the same menu items often have different salt levels depending on where they're served.

YouTube videographer ISO8 captured this oddly compelling video of a ride on Taipei's Neihu Line.

Subway advertising is a risky proposition for the advertiser because you'll never know if someone will remix your ad into, say, Darth Vader chugging a beer. In Berlin's Friedrichstraße U-Bahn station, advertisers have eschewed print completely and have taken to projecting commercials on the subway's walls. The city's …

In the euphonious data visualization "Conductor," Alexander Chen transforms the New York City subway system into a massive stringed instrument.

The subway doesn't run 24 hours in Paris, but urban exploring in the Métro is nonetheless hazardous. Luckily for us, a group of intrepid urban explorers braved the City of Light's subterranean side and came back with awesome photos.

If you're nervous about riding the subway, you may want to steer clear of Alex Andreev's Moscow Underground art series, which fills the Russian subway with giant mutant cockroaches, malevolent metro conductors, and other bits of urban horror.

So now we know that NBC's Chuck will get a third season of thrills, spills and... worryingly obvious product placement? Expect to see even more shout-outs to Subway than you would've expected, apparently.