At 58 letters, Llanfairpwllgwyngyllgogerychwyrndrobwyllllantysiliogogogoch is the longest town name in all of Europe. It wasn’t always the town’s name, though—in the 1860s, the name was developed as a way to entice tourists to make the town a stop on their travels.
It’s an amalgamation of the Welsh words and names for local landmarks, and it’s probably the best PR stunt of the 1860s—or today. So yeah, welcome to “Llanfairpwllgwyngyllgogerychwyrndrobwyllllantysiliogogogoch!” You don’t need to be able to say it to enjoy your stay.
Locals refer to the village as Llanfair, or as Llanfair PG (pronounced roughly “Hlan-var Pee Gee”) to distinguish it from other places in Wales called “Llanfair(something)”. Although typed as 58 characters, it is technically only 50 letters, because in Welsh ll ng and ch are treated as single letters.