The extensive restoration is expected to take a number of years.
However, in the late 1990s 122 received a more extensive restoration.
Between 1946 and 1950, extensive restoration of the church took place.
Finally, in 1985, extensive restoration was done to the inside and out.
During the following years the power plant went through extensive restoration.
Some of these are not in service, and even require extensive restoration.
Another extensive restoration was carried on in the 15th century.
In the years 1993 to 1995 the building enjoyed an extensive restoration.
Between 1968 and 1974, the church underwent an extensive restoration.
After extensive restoration and expansion, the building is in use as a museum since 1991.