09/13/2012 08:07 am ET Updated Nov 13, 2012

The March Of The Moderns

This city's revered Old Masters, a trove of more than 3,000 paintings that includes masterworks by Caravaggio, Bruegel, Titian and Vermeer, has collided with a planned gift of 20th-century art that the city may be in danger of losing.

Ever since June 12, when the German Parliament voted to allocate €10 million ($12.8 million) to retrofit the building now housing the Gemäldegalerie--Berlin's Painting Gallery--for the city's collection of 20th-century art, the proposal has sparked heated debate among art historians, conservators and museum directors world-wide.