It was added to several times since its original construction.
The building as it now stands is little changed from its original construction.
The original construction started in 1953 and finished one year later.
The original construction was completed in 1868 at a cost of $461,640.
It was built as part of the original construction and opened in 1977.
Since the original construction, other groups of people have been associated with the site.
A second story on the west side was added some time after original construction.
It is now much larger than the original construction of the 1920s.
There have been no significant changes to the building since its original construction.
The original construction on the site began in the 14th century.