Television presenter Simon Reeve says it is a crying shame that the "spectacular" Lincoln Cathedral does not get as many visitors as other historic attractions in Britain.
He visited the Cathedral during filming for his BBC2 series Pilgrimage with Simon Reeve.
The first episode, screened on Tuesday night, chronicled historic pilgrim trails through Britain.
And Mr Reeve said on camera that medieval pilgrims would not have wanted to miss Lincoln Cathedral.
As he gazed up at the West Front, he said: "Spectacular. Just imagine the holy shock a medieval pilgrim would have felt arriving here for the first time, seeing a building of this size, this scale.
"It does take veneration of the Almighty to inspire and justify the creation of this building.
"There's a depth of meaning that's completely lacking from modern life."
He then talked about the Cathedral's English Heritage 'At Risk' status.
"The desperation and donations of pilgrims once helped make this cathedral rich," he said.
"Lincoln still draws in the visitors, but not the crowds of the past, and most today seem to marvel more at the architecture than the message it once conveyed.
"What really surprises me is just how few people there are here.
"They get thousands of people, of course they do, but they don't get tens of thousands of visitors like other attractions in the country who would provide the money to keep the place going.
"It's a crying shame. This is Britain. Britain rendered in stone. Our passion, our history, our beliefs.
"This for me is one of the finest buildings in the world."