St Bilo's church is dedicated to a local saint named Bilo, or Beilo, daughter of Brychan. The dedication was recorded as early as the 13th century, but curiously, the church was known for many years as St Milburga's, after the daughter of a 7th century Mercian king and abbess of Wenlock. There must have been a Norman church here, for a reused lintel shows Norman carving motifs, but the building is almost entirely 14th century and later.
The chancel was rebuilt in 1710, and in the 19th century the west end of the church was blocked off and used as a schoolroom. In the south wall is a small window in Early English style, possibly a hermit, or leper window, and in the north wall is a blocked priest's door topped with a lintel carved with a traditional Norman diamond motif, suggesting an 11th-12th century date.
References:The Odeon of Herodes Atticus is a stone theatre structure located on the southwest slope of the Acropolis of Athens. It was built in 161 AD by the Athenian magnate Herodes Atticus in memory of his wife, Aspasia Annia Regilla. It was originally a steep-sloped theater with a three-story stone front wall and a wooden roof made of expensive cedar of Lebanon timber. It was used as a venue for music concerts with a capacity of 5,000. It lasted intact until it was destroyed and left in ruins by the Heruli in 267 AD.
The audience stands and the orchestra (stage) were restored using Pentelic marble in the 1950s. Since then it has been the main venue of the Athens Festival, which runs from May through October each year, featuring a variety of acclaimed Greek as well as International performances.