Where is Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch?

This is a real place! It is a large village and community on Ynys Môn (the island of Anglesey) in Wales, situated on the Menai Strait next to the Britannia Bridge and across the strait from Bangor. It is alternatively known as Llanfairpwllgwyngyll, Llanfair Pwllgwyngyll, Llanfairpwll, Llanfair PG, or Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch. The long form of the name was invented for promotional purposes in the 1860s; with 58 characters it is the longest place name in Europe and the second longest official one-word place name in the world.

This Welsh place name means: Parish [church] of [St.] Mary (Llanfair) [in] Hollow (pwll) of the White Hazel [township] (gwyn gyll) near (go ger) the rapid whirlpool (y chwyrn drobwll) [and] the parish [church] of [St.] Tysilio (Llantysilio) with a red cave ([a]g ogo[f] goch).