Why it's harder to sleep as we age

What the smell of mummies tells us about Ancient Egypt

Curious facts about Raphael, one of the world’s greatest artists

Painting a more vivid picture of Michelangelo

US cities where police kill the most people, ranked

The world welcomes 31 more wetland cities

Nations that are more obese than the US

Ladies in the lead: countries with more women than men

The world's top military powers

Kindness boosts happiness more than a higher salary, report shows

The most multilingual countries in the world

The day history's most notorious dictator died

The Royal Shrovetide: an ancient version of soccer with (almost) no rules

Books said to be authored posthumously

This is what the Bible says angels really look like

Major companies tied to WWII war criminals

Mystery in the UN: what really happened to Secretary-General Hammarskjöld?

How your crush shows they're interested, according to their star sign

What are stars really made of?

Scientists confirm earth hit global warming limit

Ways to disappear and live off-grid

Denmark and the reunification of 1920

Global gun control at a glance: How the world handles mass shootings

The disturbing "Instagram face" trend

Historical figures who were nepo babies

Dog breeds that are challenging to train

The most influential authors of the 20th century