Introduction to the Elsa Steps: The Elsa Steps are the gentle steps leading to the second floor from the inside of the Blue Hall. They are specially designed for women who wear long skirts when attending the Nobel Prize award banquet. Women in European social events have to wear long skirts. Going up and down the stairs is really a problem for this kind of dress-it is easy to trip over the long skirt if you are not careful, but it is rude to stare at your feet. In order to solve this problem, Osterberg asked his wife to try walking repeatedly in high heels and evening dresses, and (it is said that after a week) he tested the most comfortable and safe staircase design - there are 27 steps in total, each step is about three inches high. , the steps are about one foot wide. According to this design, a star-shaped mark is made at a specific point on the wall opposite the staircase. As long as a woman looks directly at the mark when she goes downstairs, she can maintain good posture by following her usual steps. It is said that in the more than 80 years since the city hall was built, countless banquets have been held in the Blue Hall, but there has never been an accident in which a shoe or skirt was stepped on.