Hogwarts is the best and most qualified wizarding school in the world. Rubeus Hagrid, the caretaker of Hogwarts, says to Harry in the first book: "Except for Hogwarts, the safest place is Gringotts." he said.

  Hermione Granger, the smartest student of the 21st century at Hogwarts, said to her friends Ron and Harry, "Don't you ever read books?! In the book 'Hogwarts: A History': 'You Cannot Apparate or Vaporize at Hogwarts.' It says!” She stated that Hogwarts cannot be apparated, evaporated, or reached with Flight Powder. That's why you go to Hogwarts by Hogwarts Express. 

Many staircases at Hogwarts are moved occasionally. Also, every building has ghosts. Some of these ghosts are:

1. Almost Headless Nick (Sir Nicholas de Mimsy-Porpington): Gryffindor

2. Bloody Baron: Slytherin

3. Gray Lady (Helena Ravenclaw): Ravenclaw

4. Fat Cupcake: Hufflepuff

  Hogwarts (as if that wasn't enough) also has a ghost. This ghost, whose name is Peeves, often wanders around on lamps.

  There are also candles on top of the hall called the Great Hall. These candles magically stay in the air. The ceiling above the candles is given the appearance of a night landscape.