The mill is a state historic site still in operation.

The station structure is also listed as a state historic site in February 1982.

After a period of use as an orphanage it has been a state historic site since 1917.

In 1991, the house opened as a state historic site & museum.

I should have checked the official state site, which reports a reasonable 72.2 percent.

Some are general state sites with links to tourism agencies.

Since the early twentieth century, the house has been preserved as a state historic site.

The restored fort is open to the public as a state historic site.

Most of the plantation is now open to the public a state historic site.

Today the tavern is a state historical site and museum.