The Question:

Was there ever a real wall on Wall Street?

The Answer:

Yes. According to The Museum of the City of New York there was, at one time, an actual wall on the street in New York City we know today as the financial center of the country.

From about 1653 to 1699 a wooden wall stood on what is now Wall Street. The wall was built by Dutch settlers to protect themselves from attacks by American Indians, the British, and New Englanders.

—The Fact Monster