With many people emigrating from Wales to America as early as the 17th Century, you can find many places in the country with names deriving from Wales, from Bryn Mawr University to Caernarvon, Louisiana.
As the capital of Wales, Cardiff has a unique character that would be difficult to find elsewhere. That's not the case for the city's name, however.
In America alone, there are at least 13 Cardiffs which range from seaside communities to ghost towns.