These kids all traveled solo and had unforgettable experiences. In 2015, a 4-year-old boarded a bus in the middle of the night trying to go on a slushy run.

Using spectators to generate eco-friendly energy is getting more and more popular. Earlier this year, Coldplay rolled out kinetic dance floors and stationary bikes for fans to help power the show.

Experts are actively trying to determine how the Great Barrier Reef can survive global warming and climate change.

These are some memorable Lego stories. In 2021, a teen named Beknur was fitted for his prosthetic arm made entirely out of Legos. In 2018, animal experts used bone plates, sewing clasps and surgical wire to create a Lego wheelchair for a turtle.

For the last few years, Bryce and Austin have had a mailbox in their front yard where kids can drop off their letters to Santa. The notes addressed to the North Pole have come from around the country.

In Portland, Oregon, brazen bandits made off with 10,000 vehicles in the last year. Some Portlanders even had their cars stolen multiple times. Locals are so fed up with the car theft crime wave, they formed their own patrol team.

Scientists in England are working to get stroke patients back on their feet with the help of robotics. In a trial at England's University of Portsmouth, several dozen stroke patients who were having trouble walking were given a bionic leg.

In 2018, a bakery in Indiana created and sold doughnuts that looked just like Tide Pods. Astronauts usually rely on dehydrated prepackaged food while in space.

A smart dog named Rosie found her way home with the help of local police. Rosie the border collie turned herself in to the U.K’.s Leicestershire Police, after being scared by an exploding firework.