But for centuries, the reddish-brown remnants of the Colosseum were also covered in another color: green. Until quite recently, there were trees, grasses, vines, and shrubs growing over what remained of the building and thriving in the varied microclimates of the structure, which range from damp and cool (in the shade on lower levels) to dry and hot (on the more exposed upper floors). This lush greenery inspired a number of historical artists and authors who visited Rome to write about their experience.
