Once reserved for mountain towns, iron-rung climbing courses called via ferratas are showing up in places like Columbus, Ohio. Here’s where else to try one.

See phenomenal photos of the world’s wonders from the February 2017 issue of National Geographic magazine.

The hidden wonders of long-vanished cities that once housed kings and hummed with everyday life are being rediscovered thanks to modern-day archaeology. Tel Megiddo in Israel holds the outlines of ...