Friends' fans engaging in unfriendly behavior at iconic Greenwich Village, New York City apartment - ABC7 New York

Visitors have been flocking to the iconic NYC apartment building where Monica, Rachel, Phoebe, Joey, Ross and Chandler spent their time for decades -- but now there are concerns about some of their unfriendly behavior.

Friends Building - All You Need to Know BEFORE You Go (with Photos)

Friends fans will remember this iconic location

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Friends Apartment Building in New York

Friends' fans engaging in unfriendly behavior at iconic Greenwich Village, New York City apartment - ABC7 New York

The New York Building Inhabited Entirely by Creative People - The New York Times

Why is the Friends Apartment Building Still Popular Among New Yorkers?

Friends tv show apartment hi-res stock photography and images - Alamy

Matthew Perry fans flock to 'Friends' apartment in NYC

The one where 'Friends' fans flock to the Village, 25 years later