1. Tarkine Rainforest, Tasmania
A rarely visited, ancient and pristine forest wilderness, the Tarkine calls to mind myth and legend.
It's in the northwest corner of Tasmania and is often referred to as the "forgotten wilderness."
It's not entirely that. It's a wonderland of wild rivers, secret waterfalls, giant tree ferns, rare birds and the near-extinct Tasmanian devil (the world's largest carnivorous marsupial). Hikers who make it here leave enchanted.
2. Knoydart Peninsula, Scotland
Rugged, isolated and beautiful Knoydart Peninsula is often described as Scotland's last wilderness. Tucked in the Highlands, it's accessible only by boat or on foot.
There are exhilarating mountain passes to cross and sandy inlets to explore.
Whether they have soaked in epic sunsets or caught glimpses of the whales, dolphins and porpoises that live in its waters, visitors usually leave feeling spiritually restored.
3. Salar de Uyuni, Bolivia
The stunning, lunar-like salt flats in the southwest of Bolivia are the largest in the world, covering 3,860 square miles.
June and July are arguably the best months, when the whole area appears blindingly white. After the rains, the salt "desert" resembles a giant mirror. It is beautifully barren and straight out of sci-fi central casting. You would be hard-pressed to find a more meditative escape.
At more than 11,400 feet above sea level, you'll need to be able to handle high altitudes.
4. Sossusvlei, Namibia
Few sights are as nourishing as the apricot-colored dunes at Sossusvlei, in the southern part of the Namib desert.
So much of Namibia is a natural paradise seemingly drawn by eco-genies. Highlights include the white salt pans of Etosha National Park, the stark beaches of Skeleton Coast, the remote, little-visited wilderness of Kaokoland in the northwest and the lush Kunene River.
5. Great Bear Rainforest, British Columbia, Canada
Never heard of it? All the more reason to visit.
The Great Bear might fly under the radar, but this is one of the largest remaining tracks of temperate rainforest left in the world.
Stretching along British Columbia's island-dotted coastline, its marvels include ancient red cedar cathedrals (some of the trees are more than a thousand years old) and other towering trees, glacier-fed fjords and wooded islands.
Estuaries and rocky beaches are "guarded" by brown and black bears, gray wolves and cougars.
Eagles soar overhead and humpback whales put in an appearance in summer, joining orcas, dolphins and seabirds.
6. Kakadu National Park, Northern Territories, Australia
The untamed Outback, wild and beautiful, is arguably nowhere more picturesque than in Kakadu, the largest national park in Australia.
The park's aboriginal owners have spent centuries amid its rock art, wetlands, gorges and stunning escarpment scenery.
7. The Bohuslän coast, West Sweden
If you've ever fantasized about gliding silently through the water on a kayak, camping on deserted beaches, enjoying the midnight sun, spotting seals and soaking up the spirit of the sea, you'll find no shortage of experiences here.
This sublime stretch of coastline extends to the border with Norway and is dotted with an archipelago of some 8,000 islands and islets.
8. Dana Biosphere Reserve, Jordan
The largest nature reserve in Jordan is a protected region about 120 miles to the south of Amman. It's an Aladdin's trove of hills, canyons, gorges and deserts, wildlife (including the rarely spotted Nubian Ibex) and plant species.
It's perfect for hikers, nature lovers and those seeking a slice of serenity.
9. The Isles of Scilly, United Kingdom
For wannabe castaways, little compares with what's probably the most beautiful spot in the UK, a tranquil sun and windswept archipelago 28 miles off the Cornish coast.
Bryher Island, with a population of around 80 (all trusting locals who leave their doors unlocked) offers coastal walks, sandy coves, wildflower-strewn bays and rocky outcrops for a wind lashing by Atlantic breakers.
Further away from it all still is the uninhabited Samson Island, an easy boat ride away.
10. Uttarakhand, Himalayas, India
Uttarakhand state forms a part of the Himalayas, but one that's often overlooked by tourists.
Yet two of India's greatest rivers, the Ganges and the Yamuna originate in the glaciers here.
Glittering peaks and vivid landscapes create an environment that can calm the most unsettled of hearts.
The region is home to some of the holiest of Hindu shrines, rare species of plants and animals and the quixotically named Valley of Flowers National Park.