On Harry Potter 6, in the astronomy tower, find the lever (ask nick if you can't find it), then use Wingardium Leviosa to move it to the exit. Throw it against the exit door thing (don't know what it's called). Then cast Wingardium Leviosa again to move it out of the astronomy tower. Cast reparo to repair it, then levitate it to the empty slot.
Because this is filed under Harry Potter books, i am going to assume you mean in the novels. It is at the top of the left tower, facing the astronomy tower.
Lacock Abbey was used for some scenes as Hogwarts in Harry Potter.
he and lily are in the dark tower year 3. have fun!
Turn the computer off.............
there is no roof in the clock tower courtyard.
Scurvy cur.
It is suposed to be the highest tower at Hogwarts although it is only mentioned in two books. It is where Dumbledore is killed and Harry and Ron give Hagrids Dragon Norbort to Charlie who is studying dragons in Romania.
on the shelf in the astronomy tower. Use accio.
Dumbledore was killed by Severus Snape in chapter 27 on page 556. Snape hit Dumbledore with the killing curse, he fell of the tower and was laying on the ground beneath the tower. If you read the 6 and 7 books you'll understand it better.
you go to the paved courtyard and get the portable swamp
You can find him in the dark tower level. You will need dark magic to get him.
In the third Harry Potter book, Prisoner of Azkaban, The Fat Lady gets ripped by Sirius Black in order to get into Gryffindor Tower, but I'm not sure if that happens in the movie.