Why S. California's tides are glowing blue

Welcome to Niue, the first country recognized as a Dark Sky Place

Cherry blossoms will paint Washington, D.C., pink

Take a visual tour through England's Lake District National Park

Experience #vanlife on the cheap with a minivan

How to watch the northern lights from the comfort of home

Pilgrims can still follow this ancient path from Canterbury to Rome

Spectacular things happen when you let winter do your hair

New Zealand opens Paparoa Track, first new 'Great Walk' in 25 years

Bougainville residents overwhelmingly vote to become world's newest nation

Walk between the Smokies on North America's longest pedestrian suspension bridge

Skating on fresh ice is a treat, especially when life gets complicated