The Category A listed Holy Trinity is the most historic church in St Andrews. The church was initially built on land, close to the south-east gable of the Cathedral, around 1144, and was dedicated in 1234 by Bishop David de Bernham. It then moved to a new site on the north side of South Street between 1410–1412 by bishop Warlock. Much of the architecture feature of the church was lost in the re-building by Robert Balfour between 1798–1800. The church was later restored to a (more elaborately decorated) approximation of its medieval appearance between 1907–1909 by MacGregor Chambers.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.