Beyond the vintage diners and roadside kitsch, Route 66 passes stunning natural attractions from Missouri caves to Arizona ...

Scientists have analyzed ancient DNA and compared more than 400 fossils from 17 natural history museums to figure out how and why extinct sloths got so big.

This turned out to be an INCREDIBLE adventure. It's rare to find such a variety of treasure in one location. This place was full of cool things to see and 30 million year old marine fossils.

The extinct mammals were about five times larger than a grizzly bear–and filled caves with their poop.

The 'City of Caves', on an island in the Sea of Oman close to Mumbai, contains a collection of rock art linked to the cult of Shiva. Here, Indian art has found one of its most perfect expressions, ...

We are just one branch of a diverse human family tree. Aside from Neanderthals, who were they – and why did we replace them?