The Avengers Mansion

You arrive at the door of the New York City home of the Avengers. You ring the doorbell and a butler by the name of Jarvis answers.
"Good evening, Sir. How may I help you?"
"Well you can start by letting me in"
"Of course Sir. Do come in." Jarvis gestures and stands aside. You enter the building. You see sign posts dotted around, obviously to stop new recruits getting lost in this huge mansion. You see signs for The Gym, Living Quarters, Kitchen, Shower Rooms, Hanger and a few others that seem less interesting at first.