This is a museum... this is a museum on crack.

I say it again... "Art, like morality, consists in drawing the line somewhere" (G.K. Chesterton).

Case in point:

Three women have been hurt by falling into Tate Modern's latest installation - a crack in the floor.

At 548 feet long, up to three feet deep and 10inches wide, it zigzags the length of the Turbine Hall and has been described as a highly original work of art.

But visitors have already paid the price for failing to heed warning signs. And a builder said if he had been responsible for the crack he would be sued for health and safety breaches.

...The installation cost about £300,000 and took more than six months to complete.

Creator Salcedo said it involved delicate and intricate sculpting which took place on two continents.