The Protestant church of Buitenpost is a late Gothic church with a quintuple closed choir was built in the late 15th century. The tower of the church is much older and dates from c. 1200 it was heightened in the 16th century and has a tented roof. The monumental pipe organ was built in 1877 by L. van Dam & Zn.
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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.