The AN-225: How the Cold War created the world's largest airplane

The first powered plane flight, performed by the Wright Brothers over the windswept beach of North Carolina's Kitty Hawk in 1903, covered 120 feet. That historic flight would fit entirely in the cargo hold of the Antonov AN-225 Mriya, the world's biggest fully operational plane.

source https://www.cnn.com/travel/article/an-225-worlds-largest-airplane/index.html