Just when I thought I'd seen it all on TikTok, I stopped dead in my tracks when I saw a video of someone running on a treadmill with a loaded 135-pound barbell on their back. "That's a recipe for ...

Editor's note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.

The "Wisconsin Winter Stack Up" hosted some of the country's fastest cup stackers. Sport stacking is a competition in which competitors stack specially designed cups up and down in set patterns. Speed ...

Blink and you might just miss it. The blur of crisscrossing hands and zigzagging neon cups is probably the weirdest organized sport you’ve never heard of. Dubbed sport stacking, this rapid-fire ...

Could you stack 12 cups in under two seconds? If the answer is "no" then the European Sport Stacking Championships are probably not for you. But for five people from Northern Ireland - including three ...