MrBeast's video '1,000 Blind People See For The First Time' is a mega hit, racking up tens of millions of views and becoming the most popular video on YouTube. Jeff Levenson is the Jacksonville, Florida surgeon that helped pull the stunt off. What was it like working with MrBeast?

Jimmy Gadomski is an experienced underwater explorer and deep sea treasure hunter. While trying so solve one of history's mysteries he ended up finding a piece of the space shuttle Challenger. But will he give us one of his coins?

Dr. Kevin Debiparshad makes dreams come true. That is, if your dream is to be 3 to 6 inches taller. But how does it work? How much does it cost to be a tall person? And what question can Shawn ask him to make things very uncomfortable?

We go live to Black Rock City in the middle of the Desert in Nevada. Once per year this place fills up with 80,000 'Burners' who are there to celebrate Burning Man. We talk to our friend Johnny Diggz to see how it all works and how things have changed.

Martin Cooper invented the cell phone and change the entire world while doing so. He talks about the first ever phone call, promotional stunts, whether or not he's rich and so much more.

Rachel Nuwer is an independent journalist who went undercover to gain access to black markets for wildlife. How does wildlife trafficking work? What animals are the most valuable? Who are these people who smuggle animals through airports? Rachel has the answers for us.

Dr Stephanie Page is at the forefront of male birth control studies, methods and testing. So it's time to ask, what are the options for men? How long until male birth control hits the market?

Grid Man, Grid Jesus, whatever you want to call him is fine. Teddy is the guy who is actually in charge of the 'grid,' the thing you hear so much about but you don't really know what it is. Let's find out what a nightmare scenario looks like to him.

A company named Miso Robotics is revolutionizing the fast food world. How did they pivot from a burger flipping robot that got fired to a industry leader so fast? What secret robots are they working on for the future?