Four walls of water cascaded into the East River off Manhattan when they were unveiled in a public art spectacle that Mayor Michael Bloomberg called the "most unexpected'' waterfalls between North America and Africa. More InformationPhotos by Mark Mason
A Big Project
The waterfalls are the city's biggest public art project since artists Christo and Jeanne-Claude erected ``The Gates'' in Central Park in 2005, adorning 23 miles of footpaths with 7,500 saffron panels.
