With more than 70 percent of the planet’s surface covered by water, the best places in the world to go scuba diving are as varied and interesting as any topside wildlife or nature attraction.

Time Out’s annual list of the world’s best cities is out. Find out how many US cities made the top 50, as well as which Africa favorite came out on top.

Whether it's a cruise around the Galápagos Islands, a tree house stay in the Amazon rain forest, or a trek in the Himalayas, nature travel gives you unforgettable sights and experiences.

where the beauty of nature meets rich cultural experiences without the scorching heat. These are some of the coolest places ...