Some rulers have no children, while other royal families are enormous. Meet 15 of them from around the world.

From the cobblestone streets of Europe to the foot of Mount Kilimanjaro, Emily Koczela has found home everywhere she goes. She has prayed with strangers whose language she cannot understand. She has ...

More families around the world are choosing to have fewer children or none all. Many countries, including the U.S., now face a rapidly aging population that could begin to shrink. We look at why this ...