As tall as they want to be.
Incas were known to be very tall. rumor has it that if you took the tallest man and compared it to an Inca, the man will go up to the Inca's knees.
There were plenty of small staircases but there were two grand staircases.
Number staircases in the white house are 10
There's a video on building staircases & tips for building staircases. (See the link in the "Related Links" section below)
Because staircases are necessary for climbing on the upper floor and to get down from the upper floor to the lower one.
Willibald Mannes has written: 'Designing staircases' -- subject(s): Staircases, Stairs
Spiral staircases are included in the Sims 3 Generations expansion pack.
The Mayans had tall pyramids. Aztecs also used pyramidal shaped structures, but they were stouter and shorter.
cochleaphobia
The typical step height for staircases in residential buildings is around 7 inches.
First class had many staircases but there were two grand staircases. The largest one was aft.
The standard step height for staircases in residential buildings is typically around 7 inches.