Fuvahmulah, part of the Maldives, stands apart as the only island in the country that is both a single atoll and a single island. Unlike the ring-shaped atolls that define most of the Maldives, Fuvahmulah has freshwater lakes, fertile soil, and lush greenery.

What sets Kaikōura apart are the extraordinary marine encounters that begin just off the shoreline. The Kaikōura Canyon, an underwater gorge that plunges to great depths close to land, creates currents rich with nutrients that attract a remarkable array of sea life year-round. Sperm whales are a common sight here and are frequently spotted on local boat tours. Dusky dolphins twist and leap in large pods, and colonies of New Zealand fur seals laze on rocky outcrops along the coast.

From the Caribbean Sea on one side to the Pacific Ocean on the other, Central America is home to lush rainforests, volcanic peaks, and vibrant coastal towns.

In Chile's arid Norte Grande, only one river in 700 miles of coastline makes it to the sea. Many towns have never experienced rainfall and depend on "Fogcatchers" to collect the morning dew for drinking water.

Set on the Adriatic Sea, Zadar, Croatia, is a major Dalmatia historical center and a tourism magnet. Walk ancient streets, see Roman ruins and enjoy white-sand beaches.