Leuven: the small Flemish town with a big (bang) history

With its cosmic roots and being the home of Stella Artois, the compact gothic town is a hip destination that has remained Belgium's best-kept secret

The barman at Fiere Margriet places a bottle of strong, dark ale in front of me. Gouden Carolus," he says. Brewed 15 miles away". A cold night has fallen over the city outside, but the low-lit pub is warm and woozy. Hops are strung along the walls; a stuffed fox looks out from the window. This pub," continues the barman, stroking his beard, has been here since fourteen-hundred-and ..." he pauses for a while ... something."

History is elastic in the small Flemish city of Leuven, which is currently hosting BANG!, a citywide festival dedicated to the big bang. Back in the soupiest mists of time - or, strictly, before time was time - a convulsion of baffling quantum forces resulted in the birth of the galaxy. About 13.8 billion years later, in 1931, a cheery Belgian in specs and dog collar came up with a concept to explain it. Albert Einstein initially dismissed the idea, then later backtracked. The Belgian in question was Georges Lemaitre - Catholic priest, father of the big bang theory, and resident of Leuven.