Walking a tight rope

Updated: Jun 16, 2012 12:06 IST

New York State Parks employee Evyn Costanzo monitors peregrine falcons along the Niagara Gorge before Nik Wallenda's walk across Niagara Falls on a wire in NY. AP/Gary Wiepert
1/15
New York State Parks employee Evyn Costanzo monitors peregrine falcons along the Niagara Gorge before Nik Wallenda's walk across Niagara Falls on a wire in NY. AP/Gary Wiepert

top photos

other photos