Hull History Centre has welcomed 30,000 people through its doors since opening on January 25 2010 – a target managers initially hoped to reach by the end of 2012.
The 30,000th visitor, Christine Carr from Skirlaugh, who was researching her family history, was presented with a souvenir paperweight by the Lord Mayor of Hull, Councillor David Gemmell.
He said: "The number of visits to the history centre demonstrates the scale of interest in culture and local history in Hull".