it is at the lightning door
There is no key when you get Hercules he brakes the lock
its in lala island
You can't without him.
go underground and there is a gate use it over there
Actually, there is no key-card. You have to use the bolt cutters from Joe Puddy's apartment to open up the gate.
First you go inside the cemetary. Once inside, walk forward, right, forward, left and then go forward three times followed by a right turn. You'll be in front of a gate marked with the letter B. I don't know where you find gate A.
On the gate near the karaoke bar. to get in< you'll need the bolt cutters
The key to the gate on Mythology Island in Poptropica is located inside the Tree of Immortality, which is found in the Grove of Temples. You need to solve puzzles and defeat enemies to reach the Tree and obtain the key.
blah
you click on it.
you have to have Hercules!
Well, this will only work if your torn picture is completed. Firstly, find the wooden broken stairs and climb yourself to the top. And then, click on the gate that is on top of you. Match the details on the statue with the picture at the top left corner of your screen. Then, the gate will open and that will lead you into the museum.