The first lighter-than-air aircraft to circumnavigate under its own power was the rigid airship LZ 127 Graf Zeppelin in 1929. Photo: Sightseers watch as Graf Zeppelin is refueled in hanger, 1933
© AP Photo LZ-127 Graf Zeppelin, piloted by Hugo Eckener also set a record for the fastest aerial circumnavigation, 21 days. Photo: Passengers in their cabin in the airship Graf Zeppelin
© AP Photo/Alfred Eisenstaedt The Graf Zeppelin flying over Buckingham Palace, UK,1931
© AP Photo On 1 July 1931, pilot Wiley Post and navigator Harold Gatty completed their circumnavigation of the world in a Lockheed Vega aeroplane, Winnie Mae, in 8 days, 15 hours and 51 minutes
© AP Photo In 1933 Wiley Post became the first pilot to fly solo around the world, as he was using the auto-pilot and compass in place of his navigator
© AP Photo First underwater circumnavigation was performed by USS Triton in 1960. It took place between 24 February and 25 April 1960, 26,723 nautical miles (49,491 km) over 60 days and 21 hours
© AP Photo/U.S. Navy The first person to fly in space, Yuri Gagarin, also became the first person to complete an orbital spaceflight in the Vostok 1 spaceship, in 1961
© Fotokhronika TASS In 1986 co-pilots Dick Rutan and Jeana Yeager made the first non-refueled round-the-world flight in an airplane. Journey in an experimental aircraft called Voyager lasted 9 days, 3 minutes and 44 seconds
© AP Photo/Doug Pizac In 1999, Bertrand Piccard of Switzerland and Brian Jones of the UK made first non-stop balloon circumnavigation in Breitling Orbiter. They covered a distance of 40,000 kilometers starting from Switzerland and finishing in Egypt in 19 days, 21 hours and 55 minutes. Photo: Breitling Orbiter 3 balloon flying over the Swiss Alps
© AP Photo/Keystone/Fabrice Coffrini On 13 June 2003, Robert Garside completed the first recognized run around the world, taking 5 and a half years; the run was authenticated in 2007 by Guinness World Records after 5 years of verification
© AP Photo/Denis Poroy In 2006 Dee Caffari became the first woman to perform a solo westward non-stop circumnavigation, in 178 days
© AP Photo/onEdition Dee Caffari sailed single-handedly and non-stop around the world "the wrong way" (westward against the prevailing winds and currents)
© AP Photo/Jacques Brinon In 2005, Steve Fossett, flying a Virgin Atlantic GlobalFlyer, set the current record for fastest aerial circumnavigation (first non-stop, non-refueled solo circumnavigation in an airplane) in 67 hours, covering 37,000 kilometers
© AP Photo/Thierry Boccon-Gibod/pool Steve Fossett and Sir Richard Branson celebrating after Fossett landed the GlobalFlyer at the Salina Municipal Airport, USA
© AP Photo/Charlie Riedel In 2012, PlanetSolar became the first ever solar electric vehicle to circumnavigate the globe
© AP Photo/Christophe Ena The sailors of the MS Turanor PlanetSolar, the world's largest solar boat ever built, standing on the deck with flares after they have achieved the first around-the-world journey using solar energy in 585 days, off the Monaco's harbour, France. The five sailors are : Raphael Domjan of Switzerland, founder and expedition leader, Patrick Marchesseau of France, Erwann le Rouzic of France, Jens Langwasser of Germany and Christian Oechsenbeim of Switzerland
© AP Photo/Bruno Bebert On 12 July 2016 Russian adventurer Fedor Konyukhov started his solo round-the-world balloon flight near Northam, 96 kilometers north-east of Perth in Western Australia
© EPA/MORTON GC PRESS SERVICE On July 23 2016 Fedor Konyukhov set new world record for the fastest non-stop solo balloon circumnavigation of the earth
© EPA/MORTON GC PRESS SERVICE