Interactive map by Impero brings Grim London’s dark history online this Halloween

London’s spine-chilling history is being brought to life this Halloween with the launch of Grim London – an interactive map that allows you to explore the dark underbelly of the capital’s past.
Created by independent digital creative agency Impero, the map allows viewers to search London by postcode and discover whether they are living on the site of a plague pit or baby farm, or across the street from the location of an infamous murder or execution.
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