Tucked away in a dilapidated old ship-building warehouse in Philly’s Navy Yard, there is a flooded staircase that houses a surprise: A Goldfish Pond. This small, strange ecosystem formed when rain and runoff accumulated beneath warehouse No. 624, which has fallen into disrepair since its closure in 1995. Since then, parts of the building have … Continue reading The Navy Yard’s Mysterious Goldfish Pond Has Vanished.