Today is the day the Mayan calendar ends and along with it the world -- at least according to a 5,000-year-old prophesy.
A recent survey found that 6 million Americans believe it to be true. Ancient prophesy meets modern anxieties.
"Some people really respond with fear to uncertainty -- things they can't predict," clinical psychologist Scott Bea, with the Cleveland Clinic, explained. "There are media reports of cataclysms: tsunamis, things of that nature that get people guessing at the end of the world."
"Now you add the Mayan calendar thing, which may be misinterpreted by many, and this just fuels the fire for people who are anxious about these sorts of things," he said.
People around the world are reacting to the prediction differently. In Mexico, thousands of tourists and believers are flocking to the Mayan ruins.
In France, several hundred people are in the village of Bugarach, It's rumored to be the sole place on earth that will escape destruction. A giant UFO and an alien crew are said to be waiting under a nearby mountain ready to take those nearby to safety.
In the United States, some people say they've been preparing for the apocalypse for some time.
"I'm pretty ready, more ready than the average person. I got a hundred pounds of rice, 50 pounds of sugar, 50 pounds of flour. I got three wells on my property. I'm ready to hunker down," South Carolina resident Dustin Guilds said.
NASA has received so many panicked calls they released a video to reassure people "it will be a day, just like any other."
But most people aren't taking the news seriously.
"The world is supposed to end? Nah, I doubt it," one person said. "We ain't worried. Nah, the Bible don't say nothing about what time or what date. Whoever came up with that, I have no idea."
CBN Chaplain Joel Palser said Christians can use this day as an opportunity to reach out to people.
"The Scripture says Jesus says 'I'm with you even till the end of the age,' so we have the promise of the presence of Jesus and, fundamentally, we're illustrating we're showing another lifestyle," Palser said.
When asked how people would spend their last moment if it were the end of the world, the majority said they would spend it with family.