The Mountain Church or Saint Nicholas Church is a Romanesque basilica built between 1198 and 1209 and consecrated to Saint Nicholas. In the 15th century the Mountain Church underwent several renovations, which gave it a more late Gothic appearance. The two characteristic tower spires are built in that period. The lower part is still original. In 1580 the Dutch Reformed Church took the temple and renamed it the Mountain Church. All catholic features were removed from the interior, which was very common to do. The wall paintings were covered with white chalk.
In 1967 the church was disestablished and its property transferred to the Municipality of Deventer. The building is used as an exhibition center and concert hall. From 1991 until 2005, the church was used for temporary exhibitions by Museum de Fundatie.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.