The Trinity Apse was founded in 1462 by the Queen Mary of Gueldres, after the death of her husband King James II. An apse is the portion of a church, usually with an arched or domed roof and containing an altar. This gothic chapel was originally located in what was then known as Waverly Valley, the area between Calton Hill and the Old Town. However, with the advent of the locomotive in the 1800s, the collegiate church was smack dab in the middle of the city’s plans for a new…