Where dwell the brave at heart,
Their daring, nerve, and chivalry
Set Gryffindors apart"
Gryffindor was founded by Godric Gryffindor, who also provided the Sorting Hat for Hogwarts. He came from a wild moor. Godric and Salazar Slytherin had quite a feud going over whether or not muggle-born witches and wizards should be allowed into the school. Godric won, but the Slytherin house never lost their distaste for Gryffindor, or vice versa.
The house is represented by a golden lion, and the official colors are gold and maroon. The robes the Gryffindor quidditch team sports are maroon with gold lining, and their house badge is stitched onto the front, just as it is on their school robes. The house ghost is Sir Nicholas De Mimsy-Porpington (Nearly Headless Nick), and the head of house is Minerva McGonagall. Their common room is located in one of the castle towers, often called "Gryffindor Tower" by the Gryffindors, and you can tell the password to the Fat Lady in Pink and she'll let you into the common room.
Famous Gryffindors include: Albus Dumbledore, and James, Lily, and Harry Potter.
The Western Tower