For the past 99 years, Citgo has owned, used, and leased out Petty’s Island. But in 2020, industry will have vacated and remediated the island, creating a wide open future for the 300-acre island and the opportunity to bring Philadelphia, Camden, and Pennsauken together in the middle of the Delaware River. This future—environmental, cultural, economic—was the focus of this year’s Better Philadelphia Challenge, whose $5,000 prize will be awarded at tomorrow’s Edmund N. Bacon Awards Ceremony

Ben Leech traces the undeveloped connection between Philadelphia and the great architect Louis Sullivan to forgotten plans for Island City, an amusement park that was to be built on Petty’s Island