The Ionian Islands are splendid, cinematic paradise. The waters are bluest blue, the sands are achingly silky and smooth. Everything looks heavily Photoshopped. But that's just Mother Nature, in all her unspoiled glory. Zakynthos is the largest of the Ionian Islands, and it's as fruitful as it is beautiful, boasting a bounty of crops like olives and grapes. Music is a huge part of the local culture—you can catch a concert or festival almost any night of the week, and you'll be captivated by the sights and sounds of Zakynthos performers.

Maybe your local zoo has lions, leopards, zebras or elephants. Maybe they even have wildebeest. But we bet they don't have 1.3 million wildebeest—never mind 1.3 million wildebeest in migration, with predators in hot pursuit. It's one of the most awesome sights in nature, and you can see it at Masai Mara in southwestern Kenya.

The Maasai call the plains of Serengeti National Park "the place where the land moves on forever"—so prepare to be astonished by its vastness. And here, you can witness the famous Serengeti annual migration, the largest and longest overland migration on earth.