Heritage Open Day: Step back in time and visit the Victorian courtroom upstairs and the cells downstairs. Hear stories from our knowledgeable guides and experience Tetbury's Victorian past. The Old Courthouse on Long Street Tetbury will be open from 11am to 3pm on Saturday the 13th of September for heritage open day. Tour this historic landmark with our volunteer guides and learn more about its architecture and development in this Cotswold town.