The International Convention Centre (ICC) in Birmingham is celebrating its 15th anniversary on Monday.
With 11 halls and 10 executive meeting rooms the ICC claims to have one of the UK's largest selection of facilities under one roof.
The ICC was officially opened by The Queen in 1991 during the International Olympic Committee session.
Since then it has seen 2.5m visitors and more than 6,000 events including the G8 Summit and the draw for Euro 96.
A gala dinner will be held on Monday to celebrate its birthday.
The ICC said 20% of its original employees still work there today.
Nick Waight, director of the ICC, said: "The ICC is an important part of Birmingham generating around £200m for the city and sustaining the equivalent of 5,000 full time jobs.
"We are looking forward to further building on this success with many exciting plans for the future, including investment in facilities and technology, training for employees and a refurbishment of the mall in the autumn."