"To circumnavigate the globe" means to travel all the way around the Earth, exploring different countries and continents, and ultimately ending up back at the starting point. Full definition
The engineering challenges of circumnavigating the globe in Solar Impulse 2 go beyond the plane itself. (discovermagazine.com)
Three years after Ewan McGregor and Charley Boorman circumnavigated the globe on their motorcycles in the series Long Way Round, the long time friends are taking to the road again. (tubitv.com)
With the first million laps behind him, the author has a good shot at circumnavigating the globe. (si.com)