The Entrance Hall is the primary entry point into Hogwarts Castle, situated directly inside the main oak front doors. It is a vast, cavernous space with a flagged stone floor and stone walls lit by flaming torches. The ceiling is so high that it is difficult to make out. Facing the front doors is a magnificent marble staircase that leads to the upper floors of the castle. Several key doorways lead from the Entrance Hall. To the right are large double doors leading into the Great Hall. A door on the opposite side leads down a flight of stone steps to the dungeons, where the Potions classroom and the Slytherin Common Room are located. Another passage contains a flight of stone steps leading down to the corridor that houses the entrance to the Hufflepuff Common Room and the Hogwarts Kitchens. There is also a small antechamber off the hall where first-year students wait before their Sorting Ceremony. Permanently housed within the Entrance Hall are the four giant House Point Hourglasses, one each for Gryffindor, Hufflepuff, Ravenclaw, and Slytherin. These hourglasses magically display the current House Point totals with precious gems—rubies for Gryffindor, emeralds for Slytherin, sapphires for Ravenclaw, and diamonds for Hufflepuff (in the books, Hufflepuff's gems are diamonds; they are yellow diamonds in the films). The hall has been the central hub of the castle since its founding.
The Entrance Hall is a location of immense significance and serves as the backdrop for many pivotal moments throughout the series.