Philadelphia rightly claims to be the cradle of American independence but rarely boasts of its community of spies whose secret actions were vital to the Patriot cause.  As you retrace the steps of the country's founding fathers in Philadelphia and Valley Forge, do not be surprised to encounter men and women who put their lives and fortunes at risk to infiltrate enemy camps, collect sensitive information and undertake dangerous missions of disruption and sabotage.  This is the danger and exhilaration that are part of the secret world of espionage.

For more than two and a half centuries, spies have been active in Philadelphia where political, scientific and economic prominence drew the attention of French and British agents in the 18th century, Confederate agents in the 19th century, German and Soviet agents in the 20th century and terrorists in the 21st.  Here, plots were hatched, operations planned, clandestine meetings conducted, and spy technology created.

Here, in Philadelphia, expect the unexpected and relish the adventure!

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Overview:  Spy Sites of New York City