High above visitors to the Natural History Museum is an art exhibition, but one you could easily miss if you didn’t know it was there. Look up from the busy Central Hall in the heart of the Museum and you’ll find a wonderful spread of ceiling panels decorated with plants from every corner of the globe. Beautiful in design, richly coloured and gilded, each has a story to tell. They speak vividly of an era when specimens of plants from around the world flooded into Britain, sparking an explosion of interest in botany and horticulture, with new glasshouses and public parks springing up all over the country.