A New Apparition in a City of Magical Views VENICE - It's one of those now-you-see-it-now-you-don't moments that tend to happen here at the Biennale. Obscuring the façade of Palladio's church of St. Giorgio Maggiore - one of the most magical and famous views in this shimmering city - is "Breath,"" a 36-foot-high inflatable sculpture of the British artist Alison Lapper pregnant, showing her without arms and with only truncated legs, as she was born. Created by Marc Quinn - another British artist - it is a polyester replica of a marble sculpture that adorned the Fourth Plinth in London's Trafalgar Square from 2005-2007 and later was the centerpiece at the opening ceremony of London's 2012 Paralympic Games. It's in Venice as part of a larger exhibition of Mr. Quinn's work at the Cini Foundation. Like "Breath" or loathe it, this giant mauve sculpture, mounted on a box-like pedestal, has been getting a lot of attention not just for its ungainly form and its placement, but also because it disappears at sunset every night and then magically reappears at 7:00 every morning. According to officials who work for Mr. Quinn the reason is weather-related. It is deflated every night because there is no 24-hour technical staff on the island to take "Breath" down if it gets too windy.