I would call them explorers.
That person is called an explorer. Explorers travel to unknown or remote places to gather information about geography, science, cultures, or other aspects of the world.
A person from Naples is called a Neapolitan.
A person from Dover is called a Doverite.
A person from the city of Halifax is called a Haligonian.
A person who comes from another country is called an immigrant.
tourist
A person who travels around the world is often called a "globetrotter" or a "world traveler."
The person is called an explorer. The word means a person who explores an unfamiliar area.
A person who doesn't have a home and travels constantly is commonly referred to as a "nomad" or "vagabond."
An astronaut.
A traveler
The book called 'Travels' is about one person's travels around the world and the things that they see. It is partly a biography and partly a travelogue.
A person who travels to other contries to enjoy their natural wonders are called 'eco-tourists'.
That person is called an explorer. Explorers travel to unknown or remote places to gather information about geography, science, cultures, or other aspects of the world.
VARIABLE
Groupie.
That kind of person is most often called a missionary.