Now we know why Barbara Walters -- one of the most famous, most recognizable people on the planet -- lives in NYC .... no one messes with her.
Barbara went for an arm-in-arm stroll yesterday on the Upper West Side with her friend, actor Peter Brown.
Check out the video. Virtually no one gives Barbara a second look. Translation -- she doesn't need anyone to affirm her fame, so it's all upside for Babs. Walkin' around without the hassle.