It's one of those daft stunts committed by people who should probably know better.
A Russian girl carefully walks across the rails of a high-rise building, with a camera presumably fixed to her person. Anyone without a head for heights will find her feat a difficult thing to watch.
You'll probably catch yourself praying there are no gusts of wind as she gingerly makes her way down the narrow planks.
Flagged on LiveLeak as "she has guts", it's hard not to notice she has additional prominent features.