The Temple of Diane, or Temple de Diane in French, is one of the many Roman ruins in Nîmes, located in today’s Jardin de la Fontaine. No one knows for sure what the function of the temple has been, but it’s believed to have been a library. In the Middle Ages it – most likely – served as a church, but was unfortunately distroyed in the Wars of Religion (1562–98).
You can see it (free of charge) in the Jardins de la Fountaine: stroll inside and enjoy the beauty of Roman architecture. Next to the temple there is a small but pretty formal garden.