Astronomy Stairs

The Astronomy Stairwell is a steep spiral staircase connecting the bottom and the top of the Astronomy Tower. Thus, it is the tallest stairway in Hogwarts Castle.

Appearances

 * Harry Potter and the Philosopher's Stone
 * Harry Potter and the Order of the Phoenix
 * Harry Potter and the Half-Blood Prince
 * Harry Potter and the Half-Blood Prince (film)
 * Harry Potter and the Half-Blood Prince (video game)