- This topic is not unique to Teenage Mutant Ninja Turtles, and its in-story notability may be too oblique for it to have its own complete article on Turtlepedia. For more information on this topic, see its corresponding article on Wikipedia:
- This page may contain a small amount of trivia describing what significance it does have to TMNT. If this topic gains enough in-story significance, it may be converted into a normal article.
- Though not directly referenced by name, the Manhattan neighborhood of Alphabet City appears frequently in the IDW continuity, as it is where the church is located, in the bunker directly beneath which is the Turtles' second lair. To those familiar with New York City geography, the lair's location in Alphabet City can be inferred from its position on the Zones of Criminal Control maps published during the City at War story arc.
- Later, all of Alphabet City (including the land around the church) and some other entire nearby neighborhoods on the East Side (like the East Village) became part of the newly-designated and quarantined Mutant Town, where the victims of Old Hob's mutagen bomb and all other mutants apprehended by the Earth Protection Force are forced to live indefinitely.
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