Dave Kunst was the first to walk around the world in the modern era in 1970-74. His walk was inspiring but also resulted in death, deception, and betrayal

In 1931, Plennie Wingo, of Texas attempted go around the world walking backwards. The sport of walking/running backwards has existed for more than 200 years.

Races around the world on Foot? Dumitru Dan of Romania and others from France claimed in the early 1900s that they were circling the globe in a competition

In 1908 an Englishman attempted to walk around the world wearing an iron mask. In 1900-07 a man pushed his wife and daughter in a baby carriage for 20,000 miles.

In 1898 Konstantin Rengarten of Russia completed the first known walk around the world on foot. Others were also attempted by 1899

From 1894-1896, a Walk Around the World frenzy took place. Ten stories are told about attempts by those called tramps, globetrotters, or around the world freaks

Circling the globe on foot, walking more that 14,000 miles in two years, has been a quest for about 150 years since Around the World in 80 days was published.

Old Soldier Barnes of Pittsburgh, was a Civil War veteran who became a popular ultrarunner during the early 1900s who ran in many indoor six-day races.

Ruth Anderson pioneered women's marathons and ultrarunning in the 1970s, when few women participated in the sport, and also was the most dominant masters runner. Special guest voice: Carolyn Murset.

Bern Heinrich was America's fastest ultrarunner in the early 1980s setting numerous records. He also became the world expert on bumblebees and ravens