Nostradamus has a prediction about it. Christians have a whole book detailing it. And scientists are right now preparing for what they will do when we face their version of it. In fact, they’re so confident they say it’s only a matter of time before the human race may be threatened.

This week, we examine theories about the end of the world.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

Imagine a world where in one second everything changes. The lights go out. Your electronics shut down. And everything with a computer is rendered useless. Will you be ready? Will you know how to survive?

This week on the Notcast, we look into the world of doomsday preppers, imagining how life would change for many of us without modern conveniences. We also speak to Jason Charles, a prepper who has been preparing for almost every disaster imaginable.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

While the movies might have you thinking the Ark of the Covenant is a Biblical superweapon, real scholars and holy men have some other ideas about this holy relic. Some believe it's in Ethiopia, while others claim it has remained in the same place for millennia.

This week, we talk to three people who have searched for the lost Ark of the Covenant. Grab your fedora and bullwhip as Brent and Ryan explore their stories...

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

For decades, people have joined the Ordo Templi Orientis society, which incorporates dark magic and sexual rituals into their presentations.

This week, we talk to Marguerite—a magazine writer who snuck into the Ordo Templi Orientis society for a story. It started out innocent enough. Then things got weird.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

After the War in Europe ended with the fall of Berlin, allied nations began using any means necessary to bring on Nazi scientists to enhance their own military technology.

This week on the Notcast, we explore Operation Paperclip, a covert project to bring former Nazi scientists that could have been tried for war crimes to the U.S. in order to build America's space powers.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

Did you ever have an imaginary friend? Did you ever wish you could make it real? Some people believe they’re doing just that. For centuries, Buddhist mystics have told legends of the Tulpa, or entities that can be “thought” into existence. Now, the practice is becoming more popular thanks to online chat forums.

This week, we examine the science and even talk to a Tulpa.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

Despite winning four Olympic gold medals and breaking three world records, when Jesse Owens returned home to the United States, he was treated like a second-class citizen.

This week on the Notcast, come back to the Berlin Olympics of 1936 as we introduce you to an amazing young track star named Jesse Owens—a track star who wanted to defeat the Nazis at their own Olympic Games.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

The Shed at Dulwich is a unique boutique eatery that was able to crawl from the worst-ranked restaurant in London to the number one restaurant in the city on Tripadvisor. Its meteoric rise took just a few months despite the menu's avant-garde dishes that were based on moods.

This week on the Notcast, listen to the unbelievable—literally—story of how one man's restaurant earned the top spot on Tripadvisor without anyone ever visiting it.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

Dr. Clare Johnson is a practiced Lucid Dreamer. A vivid nightmare when she was a young child—about drowning in a pool—led her to realize she could control her dreams, so she forced herself to wake up. Now, she teaches others about lucid dreaming.

This week on the Notcast, we talk to those who use their dreams as a personal playground. They claim to be able to control the characters and plots. So, are you ready to tell your own dream story?

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

What caused supernatural skeptics to doubt their beliefs when they visited a country music hall? Do spirits from what was once a slaughterhouse follow people to their homes?

This week on the Notcast, we explore the rumors and claims that Bobby Mackey's music world is a gateway to Hell. We interviewed the skeptic owner and even sent our own team to investigate. What they experienced set them running away in tears.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].

Do dryads and tree spirits stalk the Appalachain mountains? Could the biblical Cain stalk the woods of Ohio?

This week on the Notcast, we go deep into the woods of North America to confront the menacing and unknown. Brent and Ryan talk to people with firsthand accounts of strange and frightening experiences and ask what it is that makes moments in forests frightening.

Show notes are on Ripleys.com. You can join the Notcast conversation on Twitter or drop us a line at [email protected].