Related: The Mouth-Watering Pizza at this No-Frills Restaurant are Worth the Drive from Anywhere in California By the halfway point of the meal, everyone in the restaurant has abandoned pretense.

The human genome is made up of 23 pairs of chromosomes, the biological blueprints that make humans … well, human. But it turns out that some of our DNA — about 8% — are the remnants of ancient viruses ...

In our roundup of travel news this week: the secret tunnel city underneath Rome, China’s “8D city” where trains pass through walls, plus a new report reveals the world’s busiest flight routes, biggest ...