When I was in Boston a couple weekends ago I came across the Harbor Walk.  It starts behind the Long Wharf Marriott and goes down past the Aquarium.  It's a very nice walk.  For this photo I was standing on the walkway just behind the Chart House.  I wasn't there long before this big tanker came through.  What else could I do but take a photo of it.  Thankfully it inched along slowly so I could try to setup my shot.