Fred Barron, producer of Caroline in the City, told in one of the interviews where they took the idea for building where Caroline lives.
In the series description it's said that Caroline's appartment is set somewhere in TriBeCa, but according to Fred Baron, the producer of Caroline in the City, the cartoons (used between scenes) shows what 'Caroline's building, at 168 Duane Street, would look like filtered through her vivid imagination'. And actually, as you can see, there is some similarity.
see for yourself on Google maps

Online game inspired by Caroline in the City sitcom - chase against time to find Caroline.
Loved this show, pity they weren't given chance with the 5th season
Sulky ()
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