"For the Son of Man is going to come in his Father's glory with his angels, and then he will reward each person according to what he has done."

This passage, from the Book of Matthew, represents the hope of Christianity: that Jesus will come again. Different groups and leaders throughout history have predicted specific dates for this return, but many Christians believe—or hope—it will happen during their lifetimes. To be clear, this would mark the end of history and time, or at least human history as we know it—and a large portion of Christians believe they will live to see it.

This is particularly true in Latin America: In a new Pew survey, nearly half or more than half of respondents in 15 countries said they believe they'll live to see the end times. By comparison, an estimated 41 percent of Americans believe that Christ will "definitely" or "probably" have returned by 2050. That number was slightly higher among U.S. Hispanics: 51 percent said they believe Christ will come again during their lifetimes.

In both South and North America, Protestants are generally more likely than Catholics to believe that Jesus will walk among us within the next few decades—although many Catholics also believe this is true. In Venezuela, for example, 82 percent of Protestants felt the second coming of Chris would occur during their lifetime; only 53 percent of Catholics said the same. In the United States, this ratio is nearly the same, although the numbers are much lower: 58 percent of white evangelical Protestants say Jesus will return to earth by 2050, while only 32 percent of Catholics (and 27 percent of white mainline Protestants) agree.