Self-guided Sightseeing Tour #1 in Gloucester, United Kingdom

St Oswald's Priory was founded by Æthelflæd, daughter of Alfred the Great, and her husband Æthelred, ealdorman of Mercia, in the late 880s or the 890s. It appears to have been an exact copy of the Old Minster, Winchester It is a Grade I listed building.

Wikipedia: St Oswald's Priory, Gloucester (EN)

St Mary de Lode Church is a Church of England church immediately outside the grounds of Gloucester Cathedral. It is believed by some to be on the site of the first Christian church in Britain. The church is in the Diocese of Gloucester and Grade I listed by English Heritage. It has also been known as St. Mary Before the Gate of St. Peter, St. Mary Broad Gate and St. Mary De Port.

Wikipedia: St Mary de Lode Church, Gloucester (EN)

Gloucester Cathedral, formally the Cathedral Church of St Peter and the Holy and Indivisible Trinity and formerly St Peter's Abbey, in Gloucester, England, stands in the north of the city near the River Severn. It originated with the establishment of a minster, Gloucester Abbey, dedicated to Saint Peter and founded by Osric, King of the Hwicce, in around 679.

Wikipedia: Gloucester Cathedral (EN), Website, Heritage Website

The Folk of Gloucester is a museum which is housed in two of the oldest buildings in the city of Gloucester, a Tudor merchant's house and a 17th-century town house. The museum, at 99–103 Westgate Street, is devoted to the social history of Gloucestershire.

Wikipedia: The Folk of Gloucester (EN)

HM Prison Gloucester was a Category B men's prison located in Gloucester, Gloucestershire, England. It was originally opened in 1792, on the site of Gloucester Castle whose keep had been used as a prison.

Wikipedia: HM Prison Gloucester (EN), Website