This moulding can be one of the most dramatic details found in a room. Crowns are one of the most appealing and distinctive details in any home. The character and tone of any room is established with the ornate pattern of the crown. It is the most inexpensive and sometimes overlooked feature to embellish the overall richness of a room. Installed where the ceiling and wall meet. Often referred to as a Cornice. Soften the transition between the awkward angles of a wall and ceiling.