13 Most Beautiful Coral Reefs for Diving, Snorkeling & Adventure

From the Caribbean to the Red Sea, here are some of the world's most diverse coral reef systems, home to tropical fish, turtles, dolphins, and much more!

Photos: 18 Inspiring Cityscapes Around the World

If you love the hum of the city, wandering the maze of buildings, and the lights blinking on as the sun sets, you'll adore these cityscapes.