Vanderbilt Mansion National Historic Site was created on 1940-12-18.
Culbertson Mansion State Historic Site was created in 1867.
National Register of Historic Places was created in 1966.
Christiansted National Historic Site was created on 1952-03-04.
Eugene O'Neill National Historic Site was created in 1971.
Maggie L. Walker National Historic Site was created in 1909.
Bidwell Mansion State Historic Park was created in 1972.
Culbertson Mansion State Historic Site was created in 1867.
Riordan Mansion State Historic Park was created in 1904.
Governor's Mansion State Historic Park was created in 1970.
Leland Stanford Mansion State Historic Park was created in 1957.
The Historic Govenor's mansion was moved out of in 1976,
National Historic Landmark was created in 1960.
Steamtown National Historic Site was created in 1995.
National Trust for Historic Preservation was created in 1949.
National Register of Historic Places was created in 1966.
Bank of Montreal National Historic Site was created in 1894.
James A. Garfield National Historic Site was created in 1980.