Children's toys, hospital beds, and other relics remain in some of the rooms in Mayflower Hall on the former Pennhurst State School and Hospital campus. Photographer: Matthew Hatcher/Bloomberg Photo by Matthew Hatcher / Photographer: Matthew Hatcher/Ge

(Bloomberg) — About an hour’s drive northwest of Philadelphia, the ruins of a state-run medical institute rise from the banks of the Schuylkill River.

It’s here where real estate developer Derek Strine has been scaring locals for years. His haunted attraction, Pennhurst Asylum, every fall hosts tens of thousands of visitors for a well-controlled fright.

But Strine has a new idea for the property, one that has some locals even more disturbed: He wants to turn the nearly 130-acre grounds into a world-class data center, the kind of massi

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