OOPS! What's it doing in the churchyard?

A plaque nearby reads:

On Good Friday 11th April 1941 this tramline was thrown over the adjoining houses by a high explosive bomb which fell on Redcliffe Hill. It is left to remind us how narrowly the church escaped destruction in the war 1939-45.

From Wikipedia,
St. Mary Redcliffe is an Anglican parish church located in the Redcliffe district of the English port city of Bristol, close to the city centre. Constructed from the 12th to the 15th centuries, the church is a Grade 1 listed building, is renowned for the beauty of its Gothic architecture, having been described by Queen Elizabeth I as "the fairest, goodliest, and most famous parish church in England". The 292 ft (89 m) spire is the third tallest of England's parish churches after the Roman Catholic Church of St. Walburge, Preston and the Anglican Church of St. James, Louth. It is the tallest building in Bristol.