In this article, there is a list of some of the Worlds fastest things despite of the fact that these things are legal or not. Fastest Plane in the World X-43 AIRCRAFT SPEED 12000 KM/H Fastest Car in the World HENNESSEY VENOM GT SPEED 435 KM/H Fastest Animal in the World CHEETAH SPEED 113 KM/H Fastest Man in the World USAIN BOLT SPEED 40-44 KM/H Fastest Bird in the World SPINE TAILED SWIFT SPEED 171KM/H Fastest Fish in the World SAILFISH SPEED 110KM/H Fastest Bike in the World TOMAHAWK (ILLEGAL) SPEED 675 KM/H Fastest Bus in the World SUPER BUS SPEED 250 KM/H Fastest Train in the World SHANGHAI MAGLEV TRAIN SPEED 430 KM/H Fastest Days in the World SATURDAY & SUNDAY There is no equipment to measure the speed of these t...