Contributed by Riad Miah / What’s a ghostly-looking ship doing in the city? Probably the same thing as the ethereal-looking figures passing through a similarly urban environment. In Leigh Behnke’s solo show “Time Travelers and Ghost Ships” at the School of Visual Arts’ Flatiron Project Space, enticing and mysterious paintings of such phenomena stimulate contemplation of the future as a manifestation of how we treat the present.