Berlin - Berlin is locked in art fever, with four powerful exhibitions going ahead including work by Jeff Koons and Paul Klee.
At the Mies van der Rohe-designed New National Gallery, US contemporary artist Koons is parading a glittering array of huge sculptures and paintings.
On a lower floor is a superb selection of work by the late German expressionist painter Klee, garnered from both private and international collections.
Simultaneously, the 13th Art Forum - Berlin's International Fair for Contemporary Art - is being staged at the city's Funkturm trade fair grounds.