View of Toledo

El Greco was born in Greece, trained in Venice, and spent most of his career in Toledo, Spain - where he was considered eccentric, even mad.

This is one of only two of his surviving landscapes - and looks remarkably modern, more like a Van Gogh than traditional 16th century paintings.

The city is represented beneath a boiling green-grey sky, with what seems like dramatic lightening strikes.

The geography is arbitrarily rearranged - with El Greco moving the Cathedral to the left of the Alcázar for example.

It seems closer to Van Gogh or Dali than to other 16th century paintings.

In 1876, the Impressionist painter Camille Pissarro saw this painting and was reportedly stunned.

Many 20th-century avant-garde painters - including Picasso - cited El Greco as a direct influence.