"Shake Shack, the wildly popular burger, fries, and shake shop out of New York, opens in Philadelphia at 12th and Chestnut on Tuesday, October 23. This is the fourth Philly location for the chain: The first Shack Shack here opened at 20th and Sansom in summer 2012, followed by shops at 32nd and Chestnut and inside the Wells Fargo Center." - Rachel Vigoda