The Ha'penny Bridge has been Dublin's most recognised landmark since it opened in May 1816, though it has spent most of its life under a different name. Originally christened the Wellington Bridge, in honour of the Dublin-born duke who defeated Napoleon only the year before, it shed that identity after Irish independence. Its official name is still the Liffey Bridge. Nobody calls it that.

The bridge came about because a ferry operator named William Walsh was told his seven Liffey ferries were too dilapidated to continue. He built a cast-iron arch instead, using ore from County Leitrim and ribs cast in Shropshire, England. In return, he held the right to charge a ha'penny toll for one hundred years. There were turnstiles at each end.

VoiceMap's self-guided audio tours use the bridge to connect Temple Bar's history with the north quays, tracing the river's role in dividing and reuniting the city.