Discoveries of ancient underground cities around the world
And there are much more than you think...
300,000-Year-Old Footprints Uncovered in Germany
The fossilized hominin footprints, which date to some 300,000 years ago, were probably left by members of the species Homo heidelbergensis
Vatican is restoring the majesty of the Hercules Mastai Righetti
Museum-goers will be able to see its grandeur for themselves once the restoration is finished, which is expected in December