• Rachel Swaby

We humans like to travel. Ever since our first ancestors wandered around and out of Africa, we've been on the move, meeting new people. looking for a nice place to stay, and making clumsy hand motions to ask for directions. Today, the business of travel and tourism accounts for more than 9 percent of the world's gross domestic product and employs some 235 million people. Here's a look at where and how we travel these days.
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