The contenders are Thomas Gainsborough's 18th-century painting Blue Boy and Kehinde Wiley's very 21st-century Portrait of a Young Gentleman. The two young men are sportily dressed and look ...

A rare Chinese vase dating from the 18th century has sold for nearly ... In March last year, a 15th-century blue-and-white Chinese bowl bought at a yard sale for $35 sold for $721,800 at auction.