Clutching a pint of Guinness in one hand and flicking through photos on his cell phone in the other, Nestor Aguedelo laughed and joked with his wife and sister-in-law in a corner of The Turf, a pub in north Wales that has rapidly become one of Britain’s most unlikely tourist hot spots.

“We came to Wrexham because of the TV documentary,” said Aguedelo, an engineer from Bogota, Colombia. “We got to know the city because of that, and we just wanted to see it for ourselves.”