What Is The longest place-name still in use

"The church of St. Mary in the hollow of white hazel trees near the rapid whirlpool by St. Tysilio's of the red cave" is considered, but there is speculation that it could be theweeburgbythesusquehannawiththebeautifulthreeglobestreelightsandbucknelluniversiyandthepennsylvaniahousefurniturecompanyandthefederalprisonwherejimmyhoffaresided

see http://www.facstaff.bucknell.edu/rbeard/name.html

Llanfairpwllgwyngyllgogerychwyrndrobwyll-llantysiliogogogoch

We call it Llanfair P.G .......lol

A third entry:

Krungthepmahanakornamornratanakosinmahintarayutthayamahadilokphopnopparatrajathaniburiromudomrajaniwesmahasatharnamornphimarnavatarnsathitsakkattiyavisanukamprasit.

Apparently this is a place name in Thailand. Here's an interesting source that considers the Llanfair PG and one other name also:
Thailand's Longest Place Name