Dear 'Friends'-enthusiast Zoe,
Grove Street is a beautiful street in the heart of West Village. It was the street that made me fall back in love with New York. On this street, you'll find the famous apartment building that was featured in Friends. My other favourite site here is the Grove Court, which is a beautiful courtyard to six houses that I've only ever admired from behind the gates.
You should get lost here and wander along this street, but if you really want to find it, the Friends building is on the corner of Grove and Bedford (above The Little Owl), and Grove Court is located at 10-12 Grove Street.