(Leighton House, London, until 29 March 2015)
Tucked away in a quiet street near Holland Park, Leighton House is worth visiting at any time of year, but at the moment it offers more than just the usual dose of elegant Victoriana. The pictures that usually hang on the walls have given way to a selection of paintings from the collection of Juan Antonio Pérez Simón, a Mexican businessman with a particular fondness for British 19th-century painting. Many of the great Victorian pictures are still in private hands, and despite some renewed interest in the field, it’s still a comparatively uncommercial part of the art market. Pérez Simón has been able to build up a simply staggering collection in a relatively short period of time.