In our Geo Quiz, we asked you to figure out the distance between Cuba's capital Havana and the town of Guantanamo.

The answer is about 500 miles.

Author Richard Fleming is familiar with the route.

He traveled from the city of Pinar Del Rio -- near Cuba's western tip -- all the way across to Guantanamo in the east.

It took him four months -- by foot, and also by donkey cart, tractor, taxi, train, bus and bicycle.

And he's written a book about the experience.

It's called "Walking to Guantanamo." Learn more here