The rest of the world is building subways like crazy. The U.S. has pretty much given up

Cities around the globe are doubling down on transit. Why can’t the U.S. do the same?

The most spectacular way to cross the Bosphorus is by boat, but the most impressive way is by subway. Istanbul’s Marmaray Line, completed in 2013, links Asia and Europe by way of an eight-and-a-half-mile undersea tunnel. The ride is so fast and so smooth, it feels like a hovercraft.