Thor Pedersen – a Danish traveller- has just completed his mission to visit every country in the world in a single trip without flying, reports UNB.

During his 3,512-day voyage, he visited 203 countries, including several disputed territories not included on the United Nations' official list, BBC reports.

During his interview, Thor acknowledged that nonstop travel has not always been simple.

He spent four months attempting to enter Equatorial Guinea, and during long bus rides, he would frequently gaze up at an airplane and wonder what he was doing with his life.

"I've met so many people. I've tasted so much different food... I was good and ready to go home after two years... But I set myself a goal... and I kept fighting for the goal." He now says he's "good and ready to go home."

In October 2013, Torbjørn"Thor" Pedersen, 44, embarked on an ambitious mission to visit every country in the world. A voyage he anticipated would last a maximum of four years.

The voyage – dubbed once upon a saga -- has encountered bureaucratic and logistical difficulties, civil unrest, and unforeseen obstacles such as the Ebola outbreak in West Africa, Thor told ABC news.

"I am proud that I never gave up throughout all of this. I am proud that I was able to show the strength that was required," he said.

During the COVID-19 pandemic, the traveler was stranded in Hong Kong for two years and contemplated abandoning the project.

"This was before we had the vaccines, we didn't know where it was heading, we didn't know how dangerous it was. And it was just taking up more and more time," he said.

The initiative was funded through personal savings, corporate sponsorships, and crowdfunding with a daily budget of only $20 USD, According to ABC news.

Tens of thousands of people have followed his “journey by container ships” on social media.

"Every time I look at a world map or a spinning globe, I'll think, there's a kind and helpful person in every single one of those countries, and I've met them – and what are the odds of that?" he said during his interview with the Australian broadcaster.

Thor Pedersen, however, believes his achievement might never be done again.

"It got harder as I went along," he said.

"More and more ferry connections disappeared and were replaced by aeroplanes, I think border crossings got far more strict, and it's getting almost impossible to come on board container ships as a passenger."

Pedersen will return to Denmark for the first time in nearly a decade, also without traveling, after spending some time relaxing in the Maldives.

He has spent the past four years working on a feature-length documentary and plans to publish a book about his travels.

He also wants to get back into marathon running and participate in races across the globe, ABC news reports.

Bd-pratidin English/Tanvir Raihan