Two-time World Champion winning gymnast Valentin Chetverkin is showing off some seriously incredible moves. We can only imagine the level of balance and core strength it takes to perform an acrobatic stunt like this. Consider us impressed!
Speaking of impressive, although Kevin Parry's way of exercising may not take strength, it certainly takes skill! He's taking us behind the scenes of his brilliant video trickery to reveal exactly how he created his impossible pull-ups illusion. This one's giving us a mental workout!