The incredible 120-year-old abandoned train station in the world's richest city
It is often regarded as one of the most beautiful underground stations in the world and features skylights and chandeliers.
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Air pollution inside Philadelphia's subway is much worse than on the streets, study finds
The air quality in the City Hall subway station in downtown Philadelphia is much worse than on the sidewalks directly above the station. That is a key finding of our new study published in the ...