Doncaster, which is famous mostly for sporting events and horrific child violence. It's also the AIDS capital of Europe, and I believe it has the highest teenage pregnancy rate too.
On the positive side, it hosts the St. Leger, one of the country's most well-known horse races, and I'm proud to say my team, Doncaster Rovers, are the most successful football team in England since the inception of the Premier League, in terms of success achieved relative to crowd size, money spent and a few other factors. Essentially, they topped a league table of English football's biggest overachievers, which is quite a proud feat.
Doncaster is also responsible for Tony Christie, who penned such classics as this;
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OK, it's not much but shut up