Sky Stairway has 50 floor and a summit where Rayquaza can be battled and recruited.
10 + the top, if I remember correctly.
There are 15 floors in the quicksand cave.
20 floors plus boss floor so theres 21 floors.
There are 99 floors and Lugia is at the 99th floor.
The Bible does not specify an exact height (or number of stories) for the Tower of Babel.
48 floors
30 floors
there is thirty floors
There are 15 floors.
24 floors
there are 20 floors.
there are 15 floors to this dungeon and a sandstorm on floors 6,10 and 11
there are 20 floors glad to help
The Nightmare has 17 floors.
20 floors
50 floors
40