Mondays might make you feel at your worst. But folks like Théo Sanson remind us that we can do anything. All one needs is a committed support crew and some serious gumption.

On November 15, 2015, Frenchman Théo Sanson walked high in the air along nearly 500 meters (1,630 feet) of slackline. Slackline is a flat webbing with far less tension than a tightrope, allowing for more bounce and stretch. Sanson’s line extended between two of Castle Valley Utah’s towering edifices: The Rectory and Castleton Tower, which both rise 400 feet. You can see members of his 15-person team standing atop each of the two soaring sandstone skyscrapers, watching Sanson’s each step.

And not to worry, he’s wearing a safety harness. 

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