A small realm of serenity exists amidst the typical turmoil of the city. This place once served as the court of the Knights Templar. Visitors can explore the beautiful Romanesque church, one of the oldest in London, which opened its doors in 1185 and has historical ties to the order of Templars.
The chancel of the church was constructed by Henry III, adding to its rich historical significance. Today, Temple Church continues to serve the members of Gray's Inn and Lincoln's Inn, offering frequent services that remain open to the public.
Fans of Dan Brown's "The Da Vinci Code" may recognize Temple Church from both the novel and its film adaptation, adding a layer of modern cultural relevance to its ancient walls.
Source - https://en.wikipedia.org/wiki/Temple_Church