People who were travelling the world that vanished without a trace. Strange mysteries of a man in the amazon to the little girl lost forever.

7. Natalee Holloway
In May 2005, 18 year old Natalee Holloway from Mountain Brook, Alabama disappeared while she was on a graduation trip in Oranjestad, Aruba. Witness said that Natalee was last seen leaving a bar with three local men. The three men were identified and arrested multiple times throughout the investigation, but no charges were laid against them. The main suspect was Joran van der Sloot, an Aruban-born Dutch man, was later convicted of killing a woman in Peru, five years to the day before Natalee disappeared. Since then, police have received hundreds of tips about where Natalee’s body is, but all searches have been fruitless, and the case remains unsolved to this day.
6. Karen Denise Wells
23 year old Karen was from Haskell, Oklahoma. In April 1994, she decided to visit a childhood friend of hers across the country in New Jersey. She rented a vehicle and began her long journey. She arrived at a hotel in Pennsylvania where she asked her friend to come and meet her. However, when her friend arrived at the hotel, Karen was gone. Later, her rental car was found 35 miles away from the hotel with an additional 700 miles on the odometer. Her body was never found, and no one knows where the extra mileage came from.
5. Amelia Earhart
When looking at people who have mysteriously disappeared while they have been traveling, there is no one more famous than Amelia Earhart. Amelia was a trailblazer in aviation, and in 1937, she set out to circumnavigate the globe in Electra, her airplane. Oddly, while flying over the Pacific Ocean, Amelia and her airplane simply vanished without a trace. No remains of Amelia or her airplane have ever been found, and to this day, people keep up the search, trying to solve the mystery of her disappearance.
4. Ettore Majorana
Ettore Majorana was a big name in the 1930s, particularly in the field of theoretical physicists. Despite his success, he decided to leave his job at the University of Naples, telling his family and colleagues not to come looking for him. There’s speculation that his strange decisions were made under a nervous exhaustion. He traveled to Palermo where he seems to have had a change of heart and decided to return to Naples. However, he was never seen again. Many years later, a man came forward with a photograph that he claims was Ettore in Argentina. But, to this day, the case is unsolved.
3. Leo Widicker
Leo Widicker and his wife from North Dakota were missionaries who had traveled the world. In fact, they had been on 40 missions – all successful – throughout the course of their marriage. On their 41st mission, things changed… and not for the better. The two were at a Costa Rican beach where Leo’s wife waded in the water and Leo napped on the beach. But, when his wife returned, Leo was gone. People at the resort at the time said that Leo had been walking around asking if anyone had seen his wife. They let him out of the resort to look for her, but he mysteriously never returned. He has never been seen since.
2. Devin Williams
Devin Williams was a cargo driver from Kansas. In 1995, he left his hometown for a cargo trip to California. He arrived with his delivery successfully, and accepted another cargo load to take back with him to Kansas City. Neither Devin nor his cargo arrived to the delivery location. Instead, he was seen by hikers in the Tonto National Forest. Devin was speeding around in his truck and yelling that “They made me do it.” The hikers called local authorities, but by the time they got there, Devin was gone. A few years later, his truck was found, but no one knows where Devin went or what happened to him. What could he have been yelling about?
1. Madeleine McCann
On the 3rd of May 2007, three year old Madeleine McCann disappeared from the holiday villa where her family was staying in Portugal. Her parents, Gerry and Kate, from Leicester, England, had put their children to bed in the villa and left to eat at a restaurant with friends just 50 yards away, checking in on the children periodically. When Kate returned at 10 p.m. to check on them, Madeleine was gone. The crime scene was badly contaminated, giving investigators very little to go on. There were many theories as to what happened to little Madeleine, ranging from kidnapping to child trafficking by her own parents. To this day, the McCann’s maintain that they were not involved, but there have been no breaks in the case yet.