So some idle IMing with Janice somehow led to talk of what I call the Donut Spot - that swath of Schuykill Expressway underneath 30th Street Station and the adjacent Post Office that smells like, well, donuts in the warmer months. It never occurred to me that this odor could actually be produced by donuts - surely it had to be some sort of industrial by-product or the sweet stench of a very peculiar type of urban decay. Surely a quick Google would confirm as much!
Nope. It's donuts.