A celebrity returned to St Albans to visit an iconic landmark after it inspired his Radio 4 comedy sketch.

Herts Advertiser: The St Albans Signal Box open day as part of Heritage Open Day 2017.The St Albans Signal Box open day as part of Heritage Open Day 2017. (Image: Archant)

St Albans South Signal Box was pleased to welcome Radio 4 comedian John Finnemore back to the historic building as part of their Heritage Open Day 2017 event.

A sketch inspired by the city’s signal box, called Wroxton Box, was broadcast on John Finnemore’s Double Acts show on July 12, with Michael Palin.

The witty short featured sound effects recorded on site - including bells ringing and lever pulling.

John came back to thank the Signal Box Trust members for their help, as well as gifting them a signed picture and making a donation to the Trust.

Herts Advertiser: The St Albans Signal Box open day as part of Heritage Open Day 2017.The St Albans Signal Box open day as part of Heritage Open Day 2017. (Image: Archant)

Promoted by St Albans Civic Society, Heritage Open Day events were taking place around the whole district, with city tour guides, a special exhibition, walks and opportunities to see places of historical interest