The invention relates to a light pipe for transmitting light internally into a building or structure comprising an elongate light pipe body (18) having a first end (5) arranged to capture light and a second end (6) spaced therefrom and at least one side wall (7) defining a conduit (9); an aperture (4) in the side wall between the first and second ends; and at least one optical element positioned within the conduit and arranged so as to reproduce an image of a feature external to the building for view through the aperture. The invention allows for multi apertures in the light pipe allowing for greater efficiency and use of natural light than conventional light pipes which generally have only one opening at one of its ends. Additionally, the optical element arrangement allows a real image of the sky to be reproduced inside the building.
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