For the BBC 18th Century Season, Sean Rafferty looks at 12 Georgian art works from the Royal Collection at the Queen's Gallery, guided by Desmond Shawe-Taylor, Surveyor of The Queen's Pictures. No.4 of 12: The Temple and Oracle of Apollo by Melchior Baumgartner (1621-1686) and Charles Clay (d.1740). You can see all 12 art works in the 18th Century Gallery on the Radio 3 website.