A Different Staircase
We will soon find out exactly what Wayne had in mind for the bunker. When you fashion an underground bunker, it is crucial to put an entrance to it. Wayne decided to put down concrete steps that would ensure that the top stair and the top of the bunker were at the same level.
The Concrete Blocks
Most people want a simple staircase like a fire pole or a ladder. With his bunker down there and the stairway ready, Wayne could now finish the exterior and begin to work on the inside. Wayne knew well enough to put two l-beams to make the bunker as stable as possible.