Arguably, one of the most attractive features of factory and warehouse conversions is usually considered to be the windows. In this Budapest loft, originally a weapons plant built in 1913, large industrial windows flood the interior with natural light. But contemporary spaces can channel this look too. (Below, left and right) Upcycled and repurposed as a mirror, these larger than life frames are a simple way to recreate the look. (Middle) Taking inspiration from shadows, this wool rug offers a playful take on the trend.