On second thought, maybe visitors to this new bridge in central China should look down. The bridge stretches almost 1,000 feet - that's about the length of three football fields - across a canyon in Pingjiang county, with transparent plexiglass sections offering a spectacular view of the valley floor 600 feet below.
One more thing: Apparently the bridge is designed to sway in the wind. "I was fine at first but by the time I was a third of the way across I was just weak at the knees," 23-year-old visitor Yun Ku told reporters. "I had to go back when it started to move and needed a lot of coaxing from my boyfriend. I thought I was going to just melt on the spot. My legs wouldn't work."