Abandoned building, scrap metal business, section of the canal and dead rat floating near the 3rd St. Bridge. In the background of the image of the canal turning a corner you can see an elevated section of track/trestle for the F Train. The red brick building with no windows is a couple of blocks from the Gowanus Canal, but seemed to fit into the general environment you see as you walk towards the canal itself.

The canal is now an EPA Superfund Site. If you click on the link the Wikipedia page will have a map of the canal area on the right side of the page. Where we walked that afternoon was down 3rd St. up a couple of blocks to Carroll Gardens and then returned via Carroll St and Carroll St. Bridge.