By 1976, the land was opened as a historic site.

The building stands on a historic site in the city.

It became the state's first official historic site in 1903.

The 9-acre park was established as a historic site on March 17, 1938.

It is seen as one of the most historic sites in American history.

His house, located in the country side of the city, is considered a historic site.

Built in the 1820s, it has been named a historic site.

The building is recognized as a historic site in both countries.

Built in the mid-19th century, the complex has been named a historic site.

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