Westward Ho!
The village sign of Westward Ho! in north Devon, exclamation mark and all, twinned with Mondeville and Buddenstedt.
The punctuation is official, and it came from a bestseller. Charles Kingsley wrote his 1855 novel Westward Ho! while living in nearby Bideford, and when a company of businesspeople set out to build a seaside resort on the coast, they named it after the book. The result is the only place in the UK with an exclamation mark in its name, which makes every mention of it sound mildly thrilled.
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