This is an incredible photograph captured by the Detroit Publishing Company in 1906 that shows some street carts on Broad Street selling hotdogs and lemonade for pennies.
Here is a Google Street View of how the corner of Broad Street and Beaver Street looks today.
Larger scans of the original glass negative are available from the Library of Congress.
This photo is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1923. See this page for further explanation.