What type of lighting element is usually installed in lavatory areas as a decorative feature?

The correct answer is alcove, which is often installed in lavatory areas as a decorative feature. An alcove is a recessed space or nook that can beautifully showcase fixtures such as decorative lighting. This kind of lighting element not only enhances the aesthetic appeal of the lavatory but also allows for thoughtful lighting placement that can create a warm and inviting atmosphere.

Using an alcove for lighting can draw attention to architectural features or artwork, making it a popular choice for design-conscious spaces. Its ability to integrate seamlessly with the overall layout of the room is why it stands out as an ideal choice for decorative purposes in these areas.

Other options, while related to structures or fixtures, do not specifically highlight a design element used for illumination in the same decorative way as an alcove does.