Next up, Pope Francis is the 87-year-old head of the Catholic Church, but he's delivering a message of dialogue between all religious faiths as he travels across Southeast Asia and the Pacific.

The Pope is the leader of the Roman Catholic Church, which has more than one billion followers worldwide.

He's also the head of state of Vatican City, which is actually its own country within the city of Rome in Italy.

He became the Catholic Church's 266th Pope in 2013, and as Christopher Lamb reports, he's now embarking on the longest trip since his inauguration.

Pope Francis is embarking on the longest foreign trip of his pontificate.

He's going to four countries across Southeast Asia and the Pacific, covering almost 33,000 kilometers.

It's the longest trip that any Pope has embarked upon.

Francis will be going to Indonesia, Papua New Guinea, East Timor and Singapore.

Now top of the agenda of this trip is interfaith dialog.

Francis will be in Indonesia, which is a country which has the world's largest Muslim population.