If you broke out in a cold sweat watching Monday's video of Alex Honnold climbing a 1750-foot vertical cliff without safety gear, then you're probably not going to have an easy time with this harrowing high-altitude clip – this time showing a pair of competing wall-climbers.
Posted this week on Break.com (which we've found to be a bountiful source of heart-attack-inducing prank and scare videos), the footage appears to have been shot at Olympic Park in Salt Lake City, Utah, where two women can be seen racing to the top of a nearly vertical climbing wall (actually, it's worse – the structure curves back on itself after the midpoint) with nothing but fingers, toes and bags of chalk to keep from losing their grip.
Be sure to watch to the very end for the most terrifying moment of all... I won't spoil it for you, but I'm betting you can figure out what happens when the winner reaches the top.
Think you can handle more extreme heights? Check out this Chinese mountain temple where only the bravest stop for a cup of tea!