In 2013, Thor Pedersen left his home in Denmark for the trip of a lifetime. His goal was to travel to every country in the world. He had three rules for his journey. He had to spend at least 24 hours in each country. He couldn't return to Denmark until he had crossed off every nation on the list. And last but not least, no air travel.

Lael Wilcox is known as one of the world's best ultra-endurance cyclists. She's ridden over 150,000 miles in more than 50 countries. Now, Lael is going after her wildest idea yet: to break the record for cycling around the world. Her goal is to ride more than 18,000 miles in 110 days.

Glen Van Peski is known as the king of ultralight backpacking. While backpackers will hit the trails with a pack that weighs upwards of 20 pounds, Glen's pack usually only weighs around 12 pounds. Glen is also the founder of the functional lightweight backpacking and hiking gear company, Gossamer Gear, and the author of Take Less. Do More.: Surprising Life Lessons in Generosity, Gratitude, and Curiosity from an Ultralight Backpacker.

At the age of 50, Ruby Gates left her career and home to get on a sailboat for seven months. At the time, she knew nothing about sailing, but the trip changed her life. Now, nine years later, Ruby has decided to go after the wildest idea she's ever had. She's circumnavigating the world by sailboat.

What if your wild idea no longer brings you joy? Retired pro skier, Grace Miller, is intimately familiar with a change of course. Grace grew up in Alaska and started skiing at a young age. Before she was out of high school, she was recruited to compete at the highest level, but at age 23 after competing on the world stage, Grace decided to leave skiing behind to pursue some new wild ideas.

Alastair Humphreys is an author and adventurer who has walked 600 miles across Southern India, ran an ultra marathon through the Sahara Desert, and hiked and rafted across Iceland. Alastair's newest wild idea is to embrace the concept of "microadventures," an adventure that is short, easily accessible, and affordable while still being fun, challenging, refreshing, and rewarding.

What if you had an opportunity to travel around the moon? Christina Koch has worked at NASA for the last 10 years, and has been a part of groundbreaking missions in outer space. In 2019, Christina embarked on a 328-day stay on the International Space Station, setting a record for the longest single space flight by a woman. Now Christina has a new assignment on the horizon. She was selected to join a crew that will travel around the moon.

Travis Rice has been pushing the envelope of what's possible in snowboarding for over 20 years. He has won prestigious awards for his riding, and completely recreated what it means to host a winter sports competition. Travis has also built new businesses like Sendy and changed the way action sports films are made.

Dudley Edmondson is a legendary outdoorsman and birder, nature photographer, cinematographer, speaker and an author. In 2006, he published a book called Black and Brown Faces in America's Wild Places. He hopes that his books, photos and film work will inspire the next generation of Black, Indigenous and other people of color to get outside.

What if swiping on a dating app led you to your partner and an epic bike ride the length of Latin America? This was the case for Erin Azouz and her now-husband Mehedi. The bike trip profoundly shifted Erin's relationship with her work, her husband, and most importantly with herself.