The Hart Plaza is also home to a statue dedicated to the Underground Railroad. Detroit was typically the final place escaped slaves would go before they crossed over into Canada.
Here one of the people is pointing over towards Canada.
You can look at this statue and almost imagine that they are seeing freedom for the first time. Apparently roads in Michigan were under construction then too (note the orange barrel..which I don't think is a part of the statue).
Another angle of the statue.