Come again?

Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogo, as every school child knows, is a Welsh village with the longest name in Britain. 

Fun fact: The name was used in the 1960's cult film Barbarella (Jane Fonda) as the password for Dildano's headquarters:

Dildano: [radioing instructions to the rebel army] And our password will be... Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch.
Barbarella: You mean the secret password is Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch?
Dildano: Exactly.