This was replaced with stone in the 1920s.
These arcades were all built of wood in the 16th century, and replaced with stone in the 17th.
In 1595, the wooden market lines were replaced with stone.
During the 13th and 14th centuries, the wooden walls were replaced with stone.
However, over time, pieces were steadily replaced with stone.
The trails within the cave were slightly altered and replaced with stone.
The original timber roof has been replaced with stone.
So they tore it out and replaced it with higher-quality stone.
Initially the castle was a wooden structure which was replaced with stone over time.
It was therefore decided to replace them with new stone and brick edifices.