Photo: Matt Brown, CC BY 2.0 via Wikimedia Commons
Founded in 1123, by jester-turned-monk Rahere, this Norman church is one of the oldest in London. It was damaged in the Dissolution but managed to escape both the Great Fire and the Blitz. This is a Grade I listed building. Tourists are welcome when services are not in progress and are charged an admission fee (which does not apply to those coming to pray or use the café).
The Priory Church of St Bartholomew the Great, sometimes abbreviated to St-Barts-the-Great, is a medieval church in the Church of England's Diocese of London located in Smithfield within the City of London. The building was founded as an Augustinian priory in 1123. It adjoins St Bartholomew's Hospital of the same foundation.
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Postman's Park is three parks combined, bringing together the gardens of St Botolph's Aldersgate, Christ Church Greyfriars and St Leonard, Foster Lane. One of the largest parks in the City of London, Postman's Park contains the Memorial to Heroic Self Sacrifice; a memorial to ordinary people who died saving the lives of others and might otherwise have been forgotten.
A medieval church that was rebuilt in the late 18th century, noted for its well-preserved interior. The former churchyard was converted into a public space in 1880, called Postman's Park as it was frequented by workers from the nearby Post Office headquarters.
Church of the Holy Sepulchre (Holborn)
Grade I listed Saxon church founded before the 12th century. The exterior was mostly constructed in the 15th century, and the interior in the 19th. The north side of the church houses a musician's chapel opened in 1955. In addition to the services, there are often evening (chargeable) concerts.
Remains of the wall that surrounded the City of London for almost two thousand years. The parts around the Barbican are mostly Tudor due to maintenance (Roman remains can be seen in and around the Tower of London). Other local remains are the Noble St wall fragment and the St Alphage Gdns wall fragment.