I visit the High Line almost every day, and because I write about the park -- on the blog LivinTheHighLine.com and in the book On the Highline (recently released as an iPhone app) -- I'm always interested in what visitors are saying about it. The most common question I overhear -- and it comes from people of all ages and in dozens of foreign languages -- is: "What's that building over there?"
From former factories and warehouses to stately classics and shiny new "starchitecture," the High Line has it all. Here are 10 of the most interesting buildings -- old and new alike -- that line America's favorite urban park.
All photos are courtesy of Annik La Farge.