New York

Created by a NY public school teacher, this G-map plots historic haunts of ill repute, like morally corruptive Allen and Chrystie streets (home to prostitutes), politically corruptive St. Marks (Lenny Bruce and Abbie Hoffman), and yarmulke-ly corruptive 2nd Avenue (Hebraic gangsters like Isidore "Jew Murphy" Cohen). Also corruptive: showing schoolchildren where their grandfathers once picked up hookers.