I don't think there are any "shocking" areas, but NYC definitely has unexpected areas that confound stereotype.
Most would be surprised to know there's a section of the Bronx that looks like backcountry Connecticut, where people keep horses on their properties and ride them on city streets, just blocks from the subway:
https://www.google.com/maps/@40.8944...7i16384!8i8192
Most would be surprised at weird architecture and street scenes in the most Orthodox sections of the city, which look like nowhere else in North America:
https://www.google.com/maps/@40.6972...7i16384!8i8192
https://www.google.com/maps/@40.6999...7i16384!8i8192
And most would be surprised to know that much of Staten Island is very hilly, with weird, gritty, Pittsburgh-like microneighborhoods in the valleys:
https://www.google.com/maps/@40.6376...7i16384!8i8192