world record

Katsumi Tamakoshi...Competitors run on their arms and legs on a race course in a preliminary race during the Guinness World Record the 100-meter running on all fours at Komazawa Olympic Park Stadium in Tokyo Thursday, Nov. 13, 2014 in celebration of Guinness World Records Day. The 18-year-old Japanese Katsumi Tamakoshi set new record of 15.86 seconds Thursday. (AP Photo/Eugene Hoshiko)

Eugene Hoshiko/AP

Competitors run on their arms and legs on a race course in a preliminary race during the Guinness World Record the 100-meter running on all fours at Komazawa Olympic Park Stadium in Tokyo in celebration of Guinness World Records Day. The 18-year-old Japanese Katsumi Tamakoshi set new record of 15.86 seconds Thursday. 

Rotary members and friends climb Sydney Harbour Bridge in an attempt to break the World Record for the most people on the bridge at one time and also the most flags on the bridge at one time in Sydney on Friday. Rotary broke the Guinness World Record for the number of people on the bridge with 340 beating the previous record of 316 organised by Oprah Winfrey in 2008. Also the record was broken for the number of different international flags flown with 219 flown beating the previous record of 143 to raise funds for Rotary's End Polio Now Campaign.

Peter Parks/AFP

Rotary members and friends climb Sydney Harbour bridge in an attempt to break the world record for the most people on the bridge at one time and the most flags on the bridge at one time

Over 400 hot-air balloons take off in Chambley-Bussieres, eastern France in an attempt to set a world record for collective taking-off during the event "Lorraine Mondial air ballons", an international hot-air balloon meeting.

Alexandre Marchi/L'est Republicain/AP

Over 400 hot-air balloons took off in Chambley-Bussières, eastern France, on Wednesday in an attempt to set a world record for collective take-off.