This set is that of "Central Perk", a coffee place the 6 visit daily. Rachel waitresses here and Pheobe's iconic songs such as "Smelly Cat" are sung here.

This is Monica and Rachel's apartment. This set has the iconic purple door.

Here in Joey and Chandler's apartment lies the iconic foosball table.

Ross had 2 apartments on the show, however the most recognizable one is this one.

This is Pheobe's apartment - although is not as well known as the others, is still iconic.