2013.
The Duesburg Convention Center is a convention center in Downtown Duesburg. It hosted the Slurp & Burp Convention, a belching contest which Danny nailed.
The Convention Center is vast, as depicted in the show. It looks much bigger on the inside than it does on the outside. It has a sleek, modern look to it.
It was seen once in the series, in Danny the Belchster, Season 2.