Charlatans like Erich von Daniken convinced many gullible readers of his books this “monster” was of an alien in a space suit. Real archaeologists know it’s of an ancient tribal shaman, to be found among the greatest profusion of prehistoric rock art on earth over 10,000 years old in a remote plateau of the Algerian Sahara called the Tassili n’Ajjer.

There are no roads – you must climb up here with pack mules carrying your supplies. No one lives up here, it’s uninhabited. You’ll be among spectacularly gigantic rock formations with over 300 huge natural rock arches, so geologically unique it seems unworldly. In the center of Tassili n’Ajjer known as the Tadrart is a vastly deep gorge, like a knife sliced open the mountain. Clamber down to the bottom and you will discover a forest of 2,000 year-old Saharan cypress trees – yes, a forest in the Sahara, remnants of when the Sahara was green millennia ago.

My son Jackson and I explored here in 2003. Perhaps it’s time to be here again. (Glimpses of Our Breathtaking World #28 photo ©Jack Wheeler)

Khasab, Musendam, Enclave of Oman, October 2006. The sharp tip of Arabia, known as the Musandam Point, sticks into the Persian Gulf, separating it from the Indian Ocean. The Strait of Hormuz is only 30 miles wide from Musandam Point to the coast of Iran, and through it passes a substantial fraction of the world's crude oil.

I came here to see the Persian smugglers. Go down to the wharves in Khasab and you will see them piled high with waterproof-wrapped bales of clothes, cases of soft drinks and juice, cartons of children's toys and electronic goods, an entire shopping mall of stuff, all ready to be crammed and tied down into 20 ft. long open speedboats with powerful outboard motors capable of outrunning Iranian Navy patrols.

There are dozens, scores, of waiting speedboats. The run from Khasab harbor to coves on the Iranian coast or the Iranian island of Qeshm takes about three hours. An average night will see dozens of speedboats racing across the Strait of Hormuz smuggling goods into Iran. The smugglers couldn’t have been more friendly to me. They hate the mullahs and are proud they are helping poor people in Iran. I had a great time with them. (Glimpses of Our Breathtaking World #169 photo ©Jack Wheeler)

Ngorongoro Crater, Serengeti, Tanzania.  Ngorongoro is one of the world’s great natural wonders, created over two million years ago when the cone of a gigantic volcano collapsed in on itself.  The crater floor is over 100 square miles, teeming with African wildlife that includes the densest population of lions in the world.  You’re only allowed to drive on certain dirt roads to see them, but lions sometime have different ideas.

Here’s a lioness we found sunning herself on the hood of a Caterpillar road-grader, completely unconcerned by our presence.  We spend a few days exploring Ngorongoro to cap off our safaris in isolated roadless areas of the Serengeti.  (Glimpses of Our Breathtaking World #286, photo ©Jack Wheeler)

On the remote north side of the island of Malekula in Vanuatu, there lives a cannibal tribe called the Big Nambas. The men wear a penis gourd wrapped in pandamus fibers, and eat “man long pig,” cooked human enemies. You have to trek over mountains of thick jungle to reach them. When I was able to years ago, there were a few men who continued the practice. This gentleman is one of them. I was in no danger as they were very kind and gracious to me.

That wasn’t the case a century ago when the first explorers, Martin & Osa Johnson, reached them. Their 1918 film, “Cannibals of the South Seas,” made the Johnsons famous, and you can see it on YouTube. Today they are far more benign. It is an extraordinary experience to meet a culture of fearsome reputation and realize they are people like you and me. (Glimpses of Our Breathtaking World #103 photo ©Jack Wheeler)

10,000 years ago, the Sahara was green, with lakes, rivers, and such an abundance of animals it was a hunting paradise for people who lived here. You’ll find their petroglyphs carved on to rock outcroppings like this that my son Jackson and I found on a Trans-Sahara Expedition in 2003.

The Milankovitch astronomical cycles that drive Earth’s climate produced a West African monsoon that greened the Sahara back then. When the cycles shifted ending the monsoon, the Sahara turned dry desert as it remains today. Political cycles that permitted a peaceful crossing of the world’s greatest desert have also shifted, making this too dangerous now.

A Trans-Sahara Expedition is one of the world’s great adventures. Hopefully, one will be possible again in the not-too-distant future. (Glimpses of Our Breathtaking World #7 photo ©Jack Wheeler)

This is the interior of “Gur Emir,” the tomb of Tamerlane (1336-1405) in Samarkand, the great Silk Road city now in Uzbekistan. Tamerlane was the last of the nomadic conquerors of Eurasia, a Turkic-Mongol whose conquests extended from New Delhi to eastern Turkey.

Gur Emir is only one of a multitude of extraordinary sights in legendary Samarkand that make being here a life-memorable experience. WWe’ll be here during our exploration of Central Asia soon again. (Glimpses of Our Breathtaking World #59 photo ©Jack Wheeler)