Lake Chargoggagoggmanchauggagoggchaubunagungamaugg is a lake in the town of Webster, Massachusetts.

Lake Chargoggagoggmanchauggagoggchaubunagungamaugg is the longest place name in the United States but only the sixth longest in the world.

The longest place name in Britain is Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch, a small town in Wales. The name was contrived specifically to be the longest town name in Britain:

The longest place name in the world is Taumatawhakatangihangakoauauotameteaturipukakapikimaungahoronukupokaiwhenuakitanatahu, a Maori word for a hill located in New Zealand.

And.. These are another name.. ;D