Where are we?

A man and his wife were driving through the beautiful Welsh countryside one day when they came across a road sign which read
(the longest town-name in the United Kingdom).

The husband says the name and his wife laughs. "That's not how you pronounce it," she says and proceeds to say it herself. Her husband nearly crashes the car laughing, and they start debating how to pronounce the name.

The debate soon became an argument, and coming up to lunch time they pulled into a restaurant in the town whose name is the subject of the argument. As they were settling their bill, the wife said to the cashier, "Excuse me, but would you mind settling an argument between my husband and me? Could you possibly pronounce the name of where we are, only please do it very very slowly."

The cashier leaned forward and said, "Buurrgggerr Kiinngg."