The Temple of Hercules Victor, Rome
Photograph by David Hill taken 12 April 2015, 14.42 GMT
This circular temple is a landmark in many of Turner’s sketches in the Aventine area. In Turner’s day (and until recent years) it was called the ‘Temple of Vesta’, and was depicted by very many artists as an archetypal Roman structure. Today it is stranded on an island between half a dozen lanes of streaming traffic.