1. Amram's Pillars / The Black Canyon (Israel)
2. Bob Marshall Wilderness Complex (USA)
"The Bob" cover 1.5 million acres in Montana, and is recognized as the country's richest ecological region. Factor in the stunning surrounding forests intertwined with its boundaries, that totals 2.54 million acres without a single road. It's got a greater population density of grizzly bears than anywhere in the contiguous 48 states, and nearly every indigenous animal of the Rocky Mountain region is comfortably living in preservation.
3. Inca Trail (Peru)
4. Sentiero Azzurro (Italy)
5. Mount Kailash Pilgrimage (Tibet)
The top of this 22,000-foot peak is the summit of Kailash — held in high sacred regard by five different religious denominations. Beautifully enough, the actual peak has never been trespassed by a human out of respect and reverence. The trail is widely regarded as far more than your average hike. It's a pilgrimage to experience the "good grace" of the mountains and the purifying water of Lake Manasarovar — one of the highest lakes on the planet 15,000 feet up.
6. Overland Track (Tasmania)
7. National Trail (Israel)
8. Te Araroa (New Zealand)
9. Sir Samuel and Lady Florence Baker Historical Trail (Africa)
10. The Narrows – Zion National Park (USA)
11. Tour du Mont Blanc (Switzerland, Italy, France)
12. Torres del Paine (Chile)
13. Yoshida Trail (Japan)
14. Landmannalaugar Trail (Iceland)
15. Yam L'Yam (Israel)
Literally translating to "Sea to Sea," Israel also has a countrywide trail that spans west to east from the Mediterranean Sea to Galilee. Those that embark experience fountains and streams, periodic options to stop-off in small towns with cafés, and "Sechvi pool" swimming holes along the way.