Escape From London Transport Museum

I was very eager to visit this museum in the weekend. It was very nice when looking inside the museum and I took lot of selfies. I stuck up inside this museum. I am not able to open the main door without finding the related objects and solving the puzzles. I do not know how to solve the puzzles. So can you please find the related objects and solve the puzzle to open the main door and Escape From London Transport Museum very soon.