Manchester Town Hall is significant to Sherlock Holmes because its interior was used as the setting for the Houses of Parliament in London, where Lord Blackwood reveals his sinister plan. I found this information on the Movie-Locations website, which identifies real filming locations used in movies. This source is an example of low barriers to entry because people can share information about movie locations online without needing to be professional filmmakers or historians. Mapping this location on COVE adds a grassroots layer to a story because it connects the movie to a real place that people can visit and learn about. It also allows us to discover filming locations that they might not have known about and understand how real buildings help create the setting of a movie and overall shape how the film turned out.