Eternal flame: How Azerbaijan became the ‘Land of Fire’

Editor’s Note — This CNN Travel series is, or was, sponsored by the country it highlights.…

Unexpected discovery of mysterious drawings could change the way scientists look at cave art

Massive Native American drawings — which remained unseen in an Alabama cave for more than 1,000…

DNA reveals biggest-ever human family tree, dating back 100,000 years

The research, carried out by scientists from the University of Oxford’s Big Data Institute, combines human…