Africa's tallest tree discovered towering on continent's highest mountain

10 not-too-cold wintertime destinations

13 must-see trees around the world

10 surprising cities with great museums

10 great places to visit for Thanksgiving

9 best off-the-beaten-path river cruises

After 25 years as a trash dump, San Cristobal Canyon bounces back

9 best train rides for exploring the national parks

10 places to appreciate before they vanish

10 of the best ancient cave paintings

Take a trip across Q'eswachaka, the last handwoven Inca rope bridge

8 curses and legends from America's natural places