La Fortaleza, also known as Palacio de Santa Catalina, is the official residence and workplace of the governor of Puerto Rico. Located in the historical district of Old San Juan in the capital city of San Juan, it has served as the residence of the governor since the 16th century, making it the oldest executive mansion in continuous use in the New World. Built between 1533 and 1540 by orders of Charles I of Spain, the structure was the first fortification constructed by the Spanish on San Juan Islet to defend San Juan Bay, the harbor of Old San Juan. La fortaleza, alongside El Morro, San Cristóbal, El Cañuelo, and other forts part of the Walls of Old San Juan, protected strategically and militarily important Puerto Rico, or La Llave de las Indias, from invasion by competing world powers and harassment by privateers and pirates during the Age of Sail. It was designated a World Heritage Site by UNESCO in 1983 as part of La Fortaleza and San Juan National Historic Site.
The Virginia Governor's Mansion, better known as the Executive Mansion, is located in Richmond, Virginia, on Capitol Square and serves as the official residence of the governor of the Commonwealth of Virginia. Designed by Alexander Parris, it is the oldest occupied governor's mansion in the United States. It has served as the home of Virginia governors and their families since 1813. This mansion is both a Virginia and a National Historic Landmark and has had a number of renovations and expansions during the 20th century.
The Blaine House, also known as the James G. Blaine House, is the official residence of the governor of Maine and their family. The executive mansion was officially declared the residence of the governor in 1919 with the name "Blaine House". It is located at Capitol and State streets in Augusta, across the street from the Maine State House.
The Villa Louis is a National Historic Landmark located on St. Feriole Island, in Prairie du Chien, southwestern Wisconsin. The villa and estate are a historical museum operated by the Wisconsin Historical Society. The site has been restored to its appearance during the late 19th century, when it was the estate of the prominent H. Louis Dousman family, descendants of a fur trader and entrepreneur.
The Archie Bray Foundation for the Ceramic Arts is a public, nonprofit, educational institution located 3 miles from downtown Helena, Montana, United States.
The Colorado Governor's Mansion, also known as the Cheesman-Boettcher Mansion, is a historic U.S. mansion in Denver, Colorado. It is located at 400 East 8th Avenue. On December 3, 1969, it was added to the U.S. National Register of Historic Places. It is open free-of-charge for scheduled tours, and also hosts special public events.
The Delaware Governor's Mansion, also known as Woodburn or Governor's House, is the official residence of the governor of Delaware and the governor's family. It is located in Dover, and was listed on the National Register of Historic Places as "Governor's House" in 1972.
The North Carolina Executive Mansion is the official residence of the governor of North Carolina and their family. Building began in the year 1883 and it was designed by architects Samuel Sloan and A.G. Bauer. The first occupants, Governor Daniel G. Fowle and his daughter, Helen Whitaker Fowle, moved into the unfinished building in January 1891. It is an example of Queen Anne style architecture.
The William Trent House is a historic building located at 15 Market Street in Trenton, Mercer County, New Jersey. It was built in 1719 for William Trent and is the oldest building in Trenton. He founded the eponymous town, which became the capital of New Jersey. It has served as the residence for three Governors. The house was added to the National Register of Historic Places and listed as a National Historic Landmark on April 15, 1970, for its significance as an example of Early Georgian Colonial architecture.
Georgia's Old Governor's Mansion is a historic house museum located on the campus of Georgia College & State University (GCSU) at 120 South Clarke Street in Milledgeville, Georgia. Built in 1839, it is one of the finest examples of Greek Revival architecture in the American South, and was designated a National Historic Landmark for its architecture in 1973. It served as Georgia's executive mansion from 1839- 1868, and has from 1889 been a university property, serving for a time as its official president's residence. It is an accredited museum of the American Alliance of Museums and in 2015 was named an affiliate of the Smithsonian Institution.
The Perry McAdow House is a Renaissance Revival house located at 4605 Cass Avenue in Midtown Detroit, Michigan. It was designated a Michigan State Historic Site in 1976 and added to the National Register of Historic Places in 1980.
The Brice House is, along with the Hammond-Harwood House and the William Paca House, one of three similar preserved 18th-century Georgian style brick houses in Annapolis, Maryland. Like the Paca and Hammond-Harwood houses, it is a five-part brick mansion with a large central block and flanking pavilions with connecting hyphens. Of the three, the Brice House's exterior is the most austere, giving its brickwork particular prominence. The Brice House was declared a National Historic Landmark in 1970.
The Joseph W. Bettendorf House is a historic building located in Bettendorf, Iowa, United States. It has been listed on the National Register of Historic Places since 1983. Built as a private home, the building now houses a private school named Rivermont Collegiate.
The Carriage House Historic District in Miles City, Montana was added to the National Register of Historic Places in 1991. The historic district contained 54 contributing buildings and 21 non-contributing ones, on the 900 to 1100 blocks of Pleasant and Palmer Avenues and on cross streets. Nine locations feature signs describing the property.
Pierce-Klingle Mansion, also known as Linnaean Hill, is a historic house in Rock Creek Park in Washington, D.C. It has been listed on the District of Columbia Inventory of Historic Sites since 1964 and it was listed on the National Register of Historic Places in 1973. It is a contributing property in the Rock Creek Park Historic District.
Loretto is a historic home located at Wytheville, Wythe County, Virginia.
The Overholser Mansion is a historic house museum in Oklahoma City's Heritage Hills neighborhood, built in 1903.
The Murry Guggenheim House, also known as the Guggenheim Library, is a historic building located at Cedar and Norwood Avenues in West Long Branch, New Jersey, United States. This Beaux-Arts mansion, designed by Carrère and Hastings in 1903 as a summer residence, is now the Monmouth University library. It was added to the National Register of Historic Places on March 28, 1978, for its significance in architecture.
Hauser Mansion is a historic house in Helena, Montana, U.S., built in 1885 for Governor Samuel Thomas Hauser. In 2024 it was purchased by Governor Greg Gianforte and his wife Susan with the declared intention of donating it to become the governor's mansion.
The J. Harper Smith Mansion is a historic Late Victorian house built in 1880 by James Harper Smith and located at 228 Altamont Place in the borough of Somerville in Somerset County, New Jersey, in the United States. The architect Horace Trumbauer designed the library addition in 1898. The privately owned residence was added to the National Register of Historic Places on December 31, 1998, for its significance in architecture from 1880 to 1911.
