World 3-Ghost House (New Super Mario Bros.)
From the Super Mario Wiki
This level is the first Ghost House in the game. The gimmick of the whole level is that there are several ? Switches placed in the different areas of the level. The ? Switches are used to reveal staircases and certain doors. However, when activated, there is a time limit, and, if the time runs out before Mario reaches the area he is supposed to go, he must go back and hit the ? Switch again.
After pressing the ? Switch to reveal the regular exit door, Mario must instead pass by that door and go back down the large staircase to find a newly-created door. This exit leads to a Warp Cannon leading to World 6.