Fort Mifflin

Special | 2m 59s

In the shadow of Philadelphia International Airport stands this fort that served the U.S. military from Revolutionary times to the 1950's. The staff recently unearthed underground rooms in which a condemned man etched his name and a final message on the walls. Is he the ghostly presence visitors are said to feel?

Aired: 05/31/10

Rating: TV-PG

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