If Length of the Millennium Falcon spaceship in the Star Wars movies (34.8 m) was a standard unit ...
Length of the River Thames (346 km)...more would be 10000 x Length of the Millennium Falcon spaceship in the Star Wars movies
Length of the Peripherique around Paris (35 km)...more would be 1000 x Length of the Millennium Falcon spaceship in the Star Wars movies
Length of Tiananmen square in Beijing (880 m)...more would be 25 x Length of the Millennium Falcon spaceship in the Star Wars movies
Length of the Starship `Discovery` in the Star Trek series of that name (683 m)...more would be 20 x Length of the Millennium Falcon spaceship in the Star Wars movies
Length overall of the Cutty Sark sailing ship (85.4 m)...more would be 2.5 x Length of the Millennium Falcon spaceship in the Star Wars movies
Length of a Boeing 747 airliner (70.7 m)...more would be 2 x Length of the Millennium Falcon spaceship in the Star Wars movies
Distance to target in Olympic Archery competition (70 m)...more would be 2 x Length of the Millennium Falcon spaceship in the Star Wars movies
Longest flight of a paper airplane (69.1 m)...more would be 2 x Length of the Millennium Falcon spaceship in the Star Wars movies
Is That A Big Number? - The Book
Yes, there's now a book based on these numbers. Oxford University Press: July 2018.